I would say D! Purely because it is looking at the effects of humans (therefore related to topics more geographical).
Hope that helps. :)
Some balls will drop slower than others.
Answer: Sulfur oxide,carbon dioxide and Nitrogen Oxide are acid anhydride.
Explanation: they are refer to as acid anhydride, because when they dissolved in water,they make the water acidic by reducing the Ph of the water.These gases are greenhouse gases that are released into the atmosphere by human activities like combustion, burning of bushes etc,.when they are released into the atmosphere and have contact with atmospheric water, it leads to acidic rain.
Only the energy used for growth (33 J) is available to the next trophic level, because it is used to produce more biomass which can be consumed by the next trophic level.
