Varves are best developed near glaciers because they represent light colored layers of coarser material deposited in the summer when the streams issuing from glaciers have more energy to erode coarser material compared to the fine silts and clay of the winter months when there is very little flow and very little erosion. They mostly occur in glacial lakes.
<span>C.A floating pile of oil-soaked logs in the Cuyahoga River caught fire, and the resulting media attention led to the first Earth Day.</span>
This statement is true. Soil color only reflects the amount of organic matter that is currently present in the soil. If the soil seemed to be much darker, it means that the soil has a greater amount of organic materials which makes it better.
Answer:
The manufacture and use of these releases another greenhouse gas to the atmosphere, nitrous oxide. Therefore, increased use of fossil fuels and changes in agriculture have both contributed to the increase in global temperatures because they have both caused the release of more greenhouse gases into the atmosphere.
Explanation:
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