How are individual atoms of oxygen formed in the stratosphere? a. Individual oxygen atoms are formed when oxygen molecules collide with each other.

b. Individual oXygen atoms are formed in the sun.

C. Individual oxygen atoms are formed during photosynthesis.

d. Individual oxygen atoms are formed when UV rays strike oxygen molecules.

THE ANSWERS TO THE WHOLE OZONE TEST 1.D 2.B 3.B 4. C 5.D 6.F 7.A 8.A 9.D 10.F

the answer is d

Explanation:

Individual oxygen atoms are formed when UV rays strike oxygen molecules.

the answer is: trichonympha lives in the gut of termites and digests cellulose eaten by the termite.

this is an example of a symbiotic association of a protozoan with its mode of association.

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during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.