Answer by Mimiwhatsup: These 'rocks' are actually called fossils they are originally called sedimentary rocks as they are the only rocks that can undergo the certain process. Besides fossils regular rocks can be used to show how long they have been around there are these machines that show how long something has been around and what happened to it.
Soil fertility is lowered by
agriculture. It lowers fertility by removing soil nutrients incorporated
in the harvested crops. Cultivation, especially with heavy machinery
... This is where you will find your answer in this page just read it. Soil Fertility and ConservationSoil fertility---the ability to support plant. It is not enough to describe the soil as a country's greatest source of wealth; it is more ... to plant growth and development and are a good index of soil fertility. ... on steeper and steeper slopes lowered soil productivity - both in the hills and in ...
Answer:
the last one
Explanation:
it looked similar to the question i had on A P E X but if it's not right can you put the right answer in the ch.at for others with the same question.
United States Constitution was ratified in 1789, but had not much without a very considerable debate. During Constitutional Convention, delegates debated major issues such as the makeup of the legislature and the effect of slavery on representation.
People moved from the cities to the suburbs.
