If I understand you correctly he cleans 4 tons every 2 years well 4 is double 2 so in 4 years he would have cleaned up 8 tons. They are trying to trick you with the larger number it has nothing to do with that big number.
Answer:
<h2>Overuse of chemical fertilizers and pesticides have effects on the soil organisms that are similar to human overuse of antibiotics. ... For example, plants depend on a variety of soil microorganisms to transform atmospheric nitrogen into nitrates, which plants can use.</h2>
The correct answer is - Burning trees releases huge amounts of carbon dioxide, which is a greenhouse gas.
The burning of the trees makes huge environmental problems of all sorts, and one of the biggest problems emerging from it is the increased amount of carbon dioxide released into the atmosphere, which contributes to higher global temperatures because it is a greenhouse gas that manages to trap more heat into the atmosphere. The trees are a vital part of the storage and control of the amount of carbon dioxide because they use the carbon for their functioning and release the oxygen, so they are one of the biggest storages of carbon dioxide. Once burned, they release huge amounts of carbon dioxide into the atmosphere which has previously been stored in them.
Answer:
A political map shows the man-made borders of countries, states, and so on.
