The Correct answer is mitochondria seeing as it is the powerhouse for the cell
The fossil record is used to divide Earth's history into geologic time periods. The figure below shows the four major subdivisions of geologic time—eons, eras, periods, and epochs. Eons are the longest subdivision and are based on the abundance of certain fossils. Eons are divided into smaller time periods called eras
I think water is indeed an inexhaustible resource. We can keep using it, but it will always come back as rain, snow, ice etc. Water energy sources are one of the biggest renewable energy sources in the world.
Answer:
Graph A.
Explanation:
Stream discharge tells us how much (what volume) of water flows in an unit of time. It is usually calculated by multiplying velocity of water by a cross-sectional area (surface) through which water flows. So, flow (discharge) equals to velocity times area, or written in formula: Q = V x A. From here, we can see that Q (stream discharge) and V (velocity) are directly proportional; if one of them enhances so does the other, and vice versa. The only graph that corresponds to this relation is the first one.
Graph B shows that discharge grows if the velocity remains constant. Graph C shows that first discharge grows if velocity drops, but later they both grow, but not linearly. Graph D shows that discharge grows if the velocity drops.
