I can use this background: The Gaia hypothesis states that the biosphere is its own living organism. The hypothesis suggests that the Earth is self-regulating and tends to achieve a stable state, known as homeostasis . For example the composition of our atmosphere stays fairly consistent, providing the ideal conditions for life. When carbon dioxide levels increase in the atmosphere, plants grow more quickly. As their growth continues, they remove more carbon dioxide from the atmosphere. In this way, the amount of carbon dioxide stays fairly constant without human intervention. Now, I have a new situation: Two neighbors Paul and Dean studied toghether often. this week they got together and Paul started studying about the Gaia hypothesis, while Dean studied Einstein's Theory of Relativity. Answer this question please: Which person studied more about the biosphere?
Ans: Paul

I can use this background: Rainfall in an area is important because it influences the rate of weathering. More rain means that more rainwater passes through the soil. The rainwater reacts chemically with the particles. The top layers of soil are in contact with the freshest water, so reactions are greatest there. High rainfall increases the amount of rock that experiences chemical reactions. High rainfall may also carry material away. This means that new surfaces are exposed. This increases the rate of weathering. Now, I have a new situation: Two parcels of land , parcel Q and parcel H are situated in the same county about 20 miles away. Parcel Q received much more rainfall than parcel H, therefore the soil was more affected by the rain. Answer this question please: Which parcel had more water pass through the soil?
Ans: parcel Q

I can use this background: Generally, nearsightedness first occurs in school-age children. There is some evidence that myopia is inherited. If one or both of your parents need glasses, there is an increased chance that you will too. Individuals who spend a lot of time reading, working or playing at a computer, or doing other close visual work may also be more likely to develop nearsightedness. Because the eye continues to grow during childhood, myopia typically progresses until about age 20. However, nearsightedness may also develop in adults due to visual stress or health conditions such as diabetes. A common sign of nearsightedness is difficulty seeing distant objects like a movie screen or the TV, or the whiteboard or chalkboard in school. Now, I have a new situation: Two elementary school classmates, Clarence and Molly, are sitting in the back row of the classroom while the teacher lectures. They are both paying attention and reading what the teacher is writing on the board, but Molly is finding it difficult to read what is on the board since it appears blurry. She asks Clarence if the chalkboard looks blurry and he says that it looks clear to him. Molly will ask her mom about it when she gets home from school today. Answer this question please: Which child is less likely to have spent a lot of time using a computer?
Ans: Clarence

I can use this background: When humans dig up and use fossil fuels, we have an impact on the carbon cycle ( Figure below ). This carbon is not recycled until it is used by humans. The burning of fossil fuels releases more carbon dioxide into the atmosphere than is used by photosynthesis. So, there is more carbon dioxide entering the atmosphere than is coming out of it. Carbon dioxide is known as a greenhouse gas , since it lets in light energy but does not let heat escape, much like the panes of a greenhouse. The increase of greenhouse gasses in the atmosphere is contributing to a global rise in Earth's temperature, known as global warming or global climate change. Now, I have a new situation: Two different countries produced their electricity using different methods. Burma used fossil fuels such as coal and oil, while Bhutan used renewable energy sources. Answer this question please: Which country released more greenhouse gas into the atmosphere ?
Ans: Burma