Answer:
Energy comes from different sources such as oil, coal the wind and the sun.
Answer:
It needs the spines for protection
Explanation:
The cactus would develop the spines as a form of protection to protect itself from being consumed and to survive longer.
It is a part of the cell cycle.
Digesting a sandwich
because your stomach acids break down the food so it can be digested and what not
Answer: it attempts to to stabilize the river by creating a state of equilibrium
Explanation: Sediment transport occurs in natural systems where the particles are clastic rocks (sand, gravel, boulders, etc.), mud, or clay; the fluid is air, water, or ice; and the force of gravity acts to move the particles along the sloping surface on which they are resting.
