Answer- I think it is because of the organic matter and salt water that mix into sea foam. Hope this helps!
I am pretty sure number 4 is your answer
Answer:
Option B. Exosphere.
Explanation:
Exosphere is the last layer of atmosphere which is present at the height 700 to 10000 km from earth surface. This layer is thin as compared to other layers of the atmosphere. The layer of exosphere is composed of two elements i. e. helium and hydrogen. The temperature of exosphere is 1700 degree Celsius at daytime and becomes cold at night.
Answer:
A) allows bacteria to adapt to changing environments.
D) allows multicellular organisms to maintain homeostasis.
Explanation:
Controlling gene expression is very significant to a cell because it enables it to prevent waste of energy and raw materials during the production of substance it does not need. Therefore, it allows a cell to be a more specialized and dynamic whole that can intervene during changing conditions by controlling its physiology.
Answer:
Mostly hydrogen, some helium too and small amount of oxygen, carbon, neon, nitrogen, magnesium, iron and silicon