Answer:
"plants release oxygen"
Explanation:
Photosynthesis is critical for the existence of the vast majority of life on earth...so we'll go with "plant release oxygen"
The correct answer would be "Density is the amount of matter in a certain volume"
<em /> I believe it's gravity.
Answer:
I think it would be geographic range. Hope this helps.
Answer:
It was Discovered on May 20, 1964, By American radio astronomers Robert Wilson and Arno Penzias discovered the cosmic microwave background radiation (CMB), the ancient light that began saturating the universe 380,000 years after its creation.
Explanation: