name the one ozone depleting substances which is used as a coolant i the refrigerators and air- conditioning

Chlorofluorocarbon (CFC)

Explanation:

Released when refrigerators are made, and even released when a refrigerator is cooling things stored in it.

Chlorofluorocarbon contains

When Chlorine and Oxygen( the oxygen found in the ozone) react together, the ozone or the shield that blankets the earth from dangerous rays such as the UV ray will be put in danger.

sea breeze

explanation:

cool air is going towards land allowing for the land to be cooler, the hotter air gets pushed away from the land.

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation: