A proposed explanation made on the basis of limited evidence as a starting point for further investigation is

i'm sorry, but can you list the answers? i cannot with something i don't know the answers to

,

chris

the answer is: metamorphic rocks often show the presence of fossils, also a

hope i

-lavira: )

wegner's theory did not explain how the continents could move

explanation:

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.