Oxygen was initially created in Earth's atmosphere by algaes. It is estimated that marine plants produce between 70 and 80 percent of the oxygen in the atmosphere. Nearly all marine plants are single celled, photosynthetic algae. Hope this answers the question.
Answer: E.
Explanation: Decreasing greenhouse gasses is good. You could always use the process of elimination for this! All of these are harmful to the environment except the decreasing of greenhouse gasses!
True as we need need water to produce roughage and without roughage we cannot digest food.
Please explain your answer
Self rescue when being done should involve an individual choosing to swim to shore as the last option.
<h3>What is Self rescue?</h3>
These are different forms of methods which are done by individuals to pull out of dangerous situations which may cause them being stranded.
It is always best to get to the shore through every possible means so as to prevent drowning and other unpleasant situations thereby making it the correct answer.
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