The asthenosphere lies 80-200km below the surface under the lithosphere. Convection also occurs in the asthenosphere. The asthenosphere is mostly made of up rock material (magnesium and iron silicates). The asthenosphere makes up 6% of the mantle and lets the lithosphere move.
Best of Luck!
D. Because experimentation includes a control group. also, independent and dependent variables are part of an experiment they arent a type of research
Answer:
float
Explanation:
like a balloon or an air filled raft
it helps them float
Gas vacuoles help bacteria in buoyancy and enable them to float at the desired depth. They do so by inflating and deflating the vesicles
byjus
It is true that dead zones in waterways can occur as the result of fertilizer runoff.
