Answer:
they all have solid cores of rock, metal, and maybe even ice, but these planets are totally enveloped in thick atmospheres of gas. Hydrogen and helium (the two lightest elements) make up most of the gases in the atmospheres of these planets
Explanation:
internet
Https://www.britannica.com/place/North-America/Air-masses
Answer:
the first trophic level shows a primary producer
A single-celled prokaryotic organism that is generally free-living and of few micrometers in length is bacteria. They are very small in size that cannot be seen without a microscope.
bacteria will be present in 100 milliliters of water.
<h3>How to calculate the number of bacteria?</h3>
Given,
- 1 milliliter = 1,500,000 bacteria
- 100 milliliter = ?

Therefore, option E is correct.
Learn more about bacteria here:
brainly.com/question/2490932