About 71% of Earth’s surface is covered by water. If an area of 250 square kilometers is covered by 71% water, how many square kilometers are covered by water? Please hurry!

This is one form of rna that transports a specific amino acid to a ribosome during protein synthesis.

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.

Several billion years ago which gas was the least prevailant in the atmosphere