Before an ozone layer formed to reduce radiation, life existed a. in the air. c. in oceans and underground. b. in trees and plants. d. on land.

asked Jul 3, 2017 141k views

1 vote

Before an ozone layer formed to reduce radiation, life existed

a. in the air.
c. in oceans and underground.
b. in trees and plants.
d. on land.

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4 votes

Answer:

in oceans and underground.

Step-by-step explanation:

Paul Hinett answered Jul 4, 2017

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4 votes

Before an ozone layer formed to reduce radiation, life existed in oceans and underground.

Asgallant answered Jul 8, 2017

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