Which sentence best explains the relationship between cfcs and the ozone layer?

cfcs are produced by the ozone layer.

cfcs produce ozone in the ozone layer.

cfcs are the molecules that make up the ozone layer.

cfcs destroy ozone molecules in the ozone layer.

The first amino acid of a new polypeptide chain is

Which of the following situations describes a adaptation for a mole? question 2 options: a mole is blind and cannot see underground. a mole is bright and attracts the attention of predator birds. a mole has a sensitive sense of smell to it find food underground.

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one