When you go camping, you burn wood. Are you contributing to air pollution?
When you go camping, you burn wood. Are you contributing to air pollution?
Air pollution consists of chemicals and particles and is very bad for our atmosphere. Some air pollution comes from natural sources. This could include volcanic eruptions and wild fires. This is not the main issue though. Humans are the cause for most air pollution on Earth. Every day, millions of tons of pollutants, including carbon monoxide, sulfur dioxide, and tiny solid particles, are pumped in the atmosphere. The main culprits are motor vehicles, industrial emissions, and power plants that burn fossil fuels.
Why is indoor air pollution a serious health hazard in some developing countries? a. the burning of coal releases significant amounts of particulates into the air. b. people smoke more in developing countries. c. many homes rely on indoor burning of wood or dung without proper ventilation. d. most houses in these countries are well insulated, increasing household exposure to radiation?
Henri Rousseau’s Portrait of a Woman
Magical Realism finds precedent in eighteenth-century Gothic novels, but also connects with sixteenth-century Baroque or Surrealism, almost contemporary in the early twentieth century.
Among the most striking features of this movement, we find the blend of realism with pure unreality that is observed as normal, with the integration of magical elements without seeming extraordinary.
These works do not explain the supernatural elements and are narrated as something natural, with characters unaware of their transcendent dimension. In addition, death has paramount value in the relativistic discourse of truth, with a metaphysical focus on space and time and an intimate atmosphere that blends characters with myths, legends, and natural cultures.
Henri Rousseau’s Portrait of a Woman is considered one of the first magical realistic stories.
R=R₀(1+α(T-T₀)), where R₀ is the resistance at T₀=20°C, T is the temperature for which we want to calculate the resistance and α is the temperature coefficient for resistance.
The resistance of the copper wire increases by 18% or by 0.18, so the new value for the resistance is R=1.18*R₀.
Now we need to input that into the equation for resistance change and solve for temperature T.
1.18R₀=R₀(1+α(T-20)), R₀ cancels out,
1.18-1=α(T-20), we divide by α,
0.18/α=T-20, we put 20 on the left side,
So the temperature on which the resistance of copper wire will increase by 18% is T=46.47°C.
Improved transportation systems have resulted in _____. 1. increase death rates 2. increase greenhouse gases 3. reduced dependence on nonrenewable resources 4. increase pollution 5. easy movement on people, products, and ideas
A cooling tower a. is controlled by a thermostat. b. cools water as it flows through pipes. c. cools water through insulation. d. causes thermal pollution.
1. The answer is “C”.
“Identical twins” who have been raised apart are typically more similar in intelligence level than biological siblings raised together because they have been born with the same genetic code.
Identical twins originate from a single fertilized egg that parts into two. Before it parts, it is either male or female. After it parts, there are either two guys or two females. The two sections of the fertilized egg embed in the uterus and every create one of the twins.
Identical twins have the equivalent hereditary source. No immediate reason for monozygotic twinning has been resolved; it isn’t innate. Monozygotic twins speak to around 33% all things considered. They may look strikingly comparative, and it might be hard to reveal to them separated.
2. The answer is “A”.
Lawrence Kohlberg felt that one of the only ways individuals will accomplish the objectives in each of his six stages was to participate in “consensus democracy” in small group settings.
Lawrence Kohlberg felt that the best way to support development through these stages was by discourse of good problems and by investment in consensus democracy inside small groups. Consensus democracy was rule by understanding of the gathering, not larger part rule. This would invigorate and widen the reasoning of youngsters and grown-ups, enabling them to advance starting with one phase then onto the next.
3. The answer is “D. showing a learner how to correct common mistakes”.
The term scaffolding alludes to a procedure in which instructors display or exhibit how to take care of an issue, and afterward venture back, offering support as required. Analyst and instructional architect Jerome Bruner first utilized the term ‘scaffolding’ in this setting, harking back to the 1960s. The hypothesis is that when understudies are given the help they require while discovering some new information, they stand a superior possibility of utilizing that learning freely. Bruner suggests positive association and three methods of portrayal amid educating: activities, pictures, and dialect.
Technician is a worker trained with special skills, especially in science and engineering.
1. Agricultural technician – gathers crop or animal samples for scientific testing. (Agricultural: used for farming or relating to farming.)
2. Hydorelectric technician – Analyzes water for envinromental issues, such as drought, pollution, or erosion. (Hydroelectric – electricity produced by the energy of fast -moving water.)
3, Home appliance repairman – troubleshoots and repairs faulty machinery and equipment. (Appliance: a device, machine or piece of equipment)
4. Textile tender – operates and tends cutting machines for various textiles.
(Textile: a cloth made by hand or machine)
2. We count approximate kinetic energy using the formula K = v^2. So the vehicle which is moving at 30 mph will have four times less kinetic energy than vehicle which is moving at 60 mph. If they have the same road conditions, the breaking distance will be four times as great for the car moving twice as fast.
3. Kinetic energy depends on object’s mass and velocity and it has direct relationship with the stopping distance. The lesser mass of the vehicle = the lesser kinetic energy and lesser stopping distance. => If both vehicles have the same velocity, then small vehicle has lesser kinetic energy than large vehicle.
4. We know that kinetic energy has this relationship with velocity K = v^2. So the best way to prepare to enter sharp curves in the roadway is to lower the speed. The most appropriate speed is 20-30 mph, but it depends on road conditions and car’s breaks condition.
5. Car crashes can happen with everyone so the best way is to be prepared. First the driver should wear a seatbelt while he’s driving. He should check his tires and breaks condition regularly. And also it’s important to slow down the vehicle while entering sharp curves. Without following these rules, the driver can get catastrophic injuries in a car crash.
Signs, Signals, and Pavement Markings:
1. It doesn’t matter where you go. All you need is to learn highway code. It’s very different to know the meanings of every road sign. Also, it’s necessary to check your car’s conditions and you should take some spare parts for your car in case of accidents. So wherever you go, it’s important to be prepared.
2. You should stop before crossing and take few minutes to make sure there is no train approaching. If there is no train approaching, you can pass a railroad crossing. If you see approaching train, you should wait until it will pass a railroad crossing.
3. You should stop before the lights and wait to check the traffic movement and signs. Make sure that everything is safe and pass the intersection. Don’t move fast to avoid accidents.
4. Flashing yellow light means that it’s not necessary to stop but you should to pay attention on the traffic movement. So it would be better to yield before the lights and make sure if it’s safe to move. After that you can cross the intersection.
5. The line change means that the lane changes and you can’t cross solid lines. Pay more attention on road marking because it shows how you should behave on the road or highway.
6. As you approach the next exit and your passengers need to use the restroom and get some food, you should look for green signs which indicate food and rest stops. You should to slow down if you don’t want to skip the sign.
7. When you take the exit ramp off the expressway and merge onto the next road, you see yellow lines dividing the roadway which indicates that there is oncoming traffic and this is a two-way highway.
The frequency of light that has a wavelength of 249 nm is about 1.20 × 10¹⁵ sec⁻¹
The term of package of electromagnetic wave radiation energy was first introduced by Max Planck. He termed it with photons with the magnitude is :
E = Energi of A Photon ( Joule )
h = Planck’s Constant ( 6.63 × 10⁻³⁴ Js )
f = Frequency of Eletromagnetic Wave ( Hz )
The photoelectric effect is an effect in which electrons are released from the metal surface when illuminated by electromagnetic waves with large enough of radiation energy.
E = Energi of A Photon ( Joule )
m = Mass of an Electron ( kg )
v = Electron Release Speed ( m/s )
Ф = Work Function of Metal ( Joule )
q = Charge of an Electron ( Coulomb )
V = Stopping Potential ( Volt )
Let us now tackle the problem !
λ = 249 nm = 2,49 × 10⁻⁷ m
f = ?
Chapter: Quantum Physics
Keywords: Quantum , Physics , Photoelectric , Effect , Threshold , Wavelength , Stopping , Potential , Copper , Surface , Ultraviolet , Light
Treaty of Tordesillas in 1494 was forced on Spain and Portugal by the Pope. The Pope basically said that all lands in the New World belonged to Spain and all new non-Christian lands in the Eastern Hemisphere belong to Portugal. No other Catholic countries can do anything in those areas without the approval of the owner.
The pope basically drew two lines on the globe setting the border. The western line started at the north pole cut half way through Greenland and ended at the south pole. The new world was everything to the west. Problem is that it ran through a chunk of Brazil which is why Brazil is an ex-Portuguese colony.
The Eastern line starts at the North Pole runs through siberia, through the pacific just west of Japan, and cuts Australia in half. Of course, Australia hadn’t been discovered yet. Everything to the the east of this line is the new world.
Obviously, this treaty didn’t hold up well, but the reformation gave the protestant countries an excuse to explore the new world since they didn’t have to take orders from the Pope. Even so, France, a catholic country, ignored it too.
Really, the only country that was effected by the reformation in the exploration of the Americas was England. All the other countries, changed their religion once and then went to war with the nearest catholic country. Sweden became Lutheran and stayed that way. The Dutch Republic became Calvinists and stayed that way.
England kept switching. First it was Catholic. Then, Henry VIII made it protestant. Then, Henry’s daughter Mary I made it catholic again. Henry’s other daughter Elizabeth I (with the two hit movies) made it Protestant again.
Years latter, Oliver Cromwell over through the monarchy, executed the King Charles I, and established a Protestant fundamentalist religious military dictatorship. He outlawed drinking,smoking, gambling, theater, dirty books, sports, prostitution, and anything generally fun. He would have made Saudi Arabia proud. Basically, all you could do is work, pray, and die. Sex was allowed for creating children, but you couldn’t enjoy it.
When Cromwell died, the people of England said enough was enough and brought back the King. Charles II kicked out the fundamentalists and brought back drinking, smoking, gambling, dirty books, sports, prostitution, and having fun during sex. Incidentally, those were also all his hobbies.
This brings us to the famous Pilgrims. They were part of Cromwell’s crowd. They kept agitating a return to the no-fun policy. They annoyed everybody. They weren’t persecuted for practicing their religion, they were persecuted because they kept trying to force their religion on everyone else. Sort of like Southern Baptists.
Charles II was the most easy going monarch in British history. Do realize how annoying you have to be to get him to throw you out.
Charles’s brother James II was obsessed with turning Great Britain catholic again. After four years of trying, they kicked him and his followers out.
Fg=(G*m₁*m₂)/r₂, where G=6.67*10^-11 m³ kg⁻¹ s⁻² is the gravitational constant, m₁ and m₂ are the masses of the two bodies and r is the distance between those bodies.
Due to the gravitational attraction the pencil and the eraser will attract if we there is no friction on the surface.
m₁=10 g=0.01 kg is the mass of the pencil
m₂=20 g=0.02 kg is the mass of the eraser
r=2.5 cm = 0.025 m
First we calculate the Fg:
To get the velocity v of the pencil:
v²=2as, where a is the acceleration of the pencil and s is the path. In our case s=r so we can write:
a=Fg/m₁= 2.133*10^-9 m/s²
We have the velocity and the acceleration, so we can calculate the time t with the equation:
1 hour has 3600 s so when we divide time t in seconds by 3600 we get time T in hours:
So the time for the pencil and eraser to touch is T=1.3449 hours.
Also time T can be expressed like T= 1h and 20 mins and 41.64 s
Using a quotation
Giving an anecdote
Presenting a serious of interesting facts
Asking a thought-provoking question
All options except providing a conclusion can lead to the reader wanting to continue reading. A conclusion, though, is an end.
An anecdote is good way to make a point while telling an interesting story.
Interesting facts are, obviously, interesting.
A thought-provoking question might make the reader intrigued and wanting to know more about the subject.
A similar thing can be done with a quotation if it comes from somebody important or intriguing.
Desert– receives less then then 10 inches of rain
Forest-much of this ecosystem has been converted into farms
Grassland– worlds largest ecosystem
Tundra– ecosystem with the harshest climate
Freshwater– wetlands, rivers, lakes
Marine– estuaries, coral reefs
I hope this Helps y’all.
Help pls!!! Describe two ways to reduce air pollution and slow climate change.
Answer: The correct answer is-
b. Pesticides prevent the destruction of crops.
Pesticides can be described as chemicals, which are primarily are used to control/ kill pest population that can other destroy the crops.
In other words, they are utilized in crop protection against pest such as weeds, insects, and other pests.
For instance, caterpillars, which feed on cabbage crop, are killed using pesticides, leading to high yields and better cabbage quality.
By preventing crops from destruction by pests, these chemicals lead increase in the crop yields, and the times in one year that a crop could be cultivated on the field.
Thus, option b) is the right answer.
SCIENCE HELP PLEASE!!!! Nutrient pollution causes algal blooms and fish kills. Question 2 options: True False Save Question 3 (1 point) Question 3 Unsaved In normal ecosystem low nutrient levels keep algae in check. Question 3 options: True False Save Question 4 (2 points) Question 4 Unsaved Which of the following contributes to excess nutrients entering the bay? Question 4 options: Sewage run-off Not recycling Agricultural run-off Air pollution Save Question 5 (2 points) Question 5 Unsaved In order to get Phase 2 to turn blue (like we saw in Phase 1), did we need more or less drops of Reagent D than what we used in Phase 1? Question 5 options: More Less Save Question 6 (2 points) Question 6 Unsaved Which stage of of the experiment had the MOST dissolved oxygen in the water? Question 6 options: Phase 1 Phase 2 Phase 3
The characteristics of each poem are:
1- This poem is a reference, and a sort of answer, to Whitman’s poem “I Hear America Singing.” In his poem, Whitman talks about how every American -mechanics, carpenters, boatmans- is singing. However, he makes no mention of black people. This is why the poem is entitled “I, Too,” to express that Hugues, an African American man, is still an American.
6- This poem does not have specific rhyme scheme or meter. Therefore, it is written in what is known as “free verse.”
2- The social injustice paradox means that social injustice is rooted in the lack of access to education, money and power, and that the solution lies in institutions which are always supported by those with money and power. This poem refers to this paradox because it refers to white people oppresing African Americans and not allowing them to be rightfully repaid for their work.
3- This poem is written in iambic pentameter and has a traditional (ABAB) rhyme scheme.
4- The poem symbolizes the great efforst black people did while working, only to have their profits taken by their white maters.
5- The whole poem is filled with an angry tone. Lines such as “Not always bend to some more subtle brute;” clearly express the resentment and repudiation she feels for white people.
Abiotic factors are the physical and chemical conditions of an environment. For example : heat, salinity, pressure, light, wind, pH …
Biotic factors are all the biological conditions of an environment for a specie/taxa. It can include prey and predator abundance, available food amount, available space, intra and interspecific competition…
The development of organims is under the control of abiotic factors. Some are adapted to heat, cold etc … The abiotic factors will define which organisms are able or not to live in a specified place.
The living organisms will constitute the biotic factors, which define if and how can an organism live in a specified environment.
1. The right answer is B. Geosphere
The geosphere is usually called an earth’s sphere. The word thus names a phenomenon of the earth, which often lays shell-like around the whole celestial body. Within a period of 150 years, the geosphere term experienced at least ten different definitions, of which five are still used today in the German-speaking world. As a result, there is currently no agreement on the content, extent and extent of the geosphere.
2. The right answer is A. Biosphere
The biosphere is the system formed by all living things on planet Earth and their interrelations that influence the environment, as a medium on organisms. This meaning of “living envelope” of the Earth is the most widely used, but it sometimes refers to the space in which life develops.
3. The right answer is A. Atmosphere
The atmosphere is, in the broad sense, a gaseous layer that envelops some stars. The Earth as well as other planets or stars are provided. An atmosphere may contain particles in suspension (dust, aerosols, etc.) or reach very high temperatures, as is the case for stars, thus generating a light emission.
The correct answer will be option-C.
The living organism uses energy to survive through performing metabolic reactions. The metabolism is the characteristic feature of living organisms which enables the organism to survive.
Organism performs the chemical reactions which could help make the energy molecules in the cell and help store energy in the energy molecule like Adenosine triphosphate or ATP.
The energy is stored in the high energy bonds between two phosphate groups which get utilized by the organism after a breakdown which releases a high amount of energy.
Thus, Option-C is the correct answer.
Environmental pollution does not affect an individual’s health T or f