9.
Cnidarians such as jellyfish have radial symmetry. How are the body parts of cnidarians arranged?

as two separate halves

like spokes on a wheel

like layers in a stack

as segments in a row

Humans can affect weathering and erosion in several ways.  humans cause  increases in acid rain and pollution, which increase the amount of  weathering  agents in the air and water, and then on land.for an easy answer: 1) acid rain2) pollution

The best way to tell its true color is to look at the minerals streak