This photo shows a plateau. which events could have caused this plateau to form? select the three correct answers.
a. uplift raised the level of a piece of crust.
b. the seafloor spread.
c. mountains eroded.
d. a river ran through the crust.
e. basaltic lava flowed from cracks in the crust.

they are known to reach a speed of 21 miles per hour

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.