Which is a nonpoint source of pollution?

tourists throw trash into the ocean.

a car mechanic pours oil on the ground.

rain contains chemicals that seep into the ground.

a pipe dumps waste from a factory into a stream.

Rain contains chemicals that seep into the ground.

Explanation:

Rain water does not cause pollution.

Rain water is free of toxic chemicals and full of nutrients.

It therefore adds up to the conservation and beautification of the environment.

Spilling oil on the ground is hazardous to the environment since oil contain harmful chemicals which pollute soil.

Throwing trash into the sea threatens aquatic life by polluting water.

c

Explanation:

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u