A. a piece of DNA that controls a trait
Answer: Definition
Explanation: In science, the word 'theory' refers to the way in which people interpret facts. A scientific theory is the framework for observations and facts. Theories may change, the way in which they are interpreted may change, but the facts remain the same.
Answer: humans would become weightless, we would be flying super fast across the earth; much like tumbleweeds.
Explanation:
because thats how gravity works.
Explanation:
As shown in the illustration the highest percentage of air is composed of nitrogen gas at 78%. The second highest percentage is oxygen at 21%. The other trace gases, including carbon dioxide, make up about 1% of the gas composition.
Learn More:
For more on air composition check out;
brainly.com/question/10343608
brainly.com/question/14322147
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