HEY DEAR..
1》 All stars die, and eventually — in about 5 billion years — our sun will, too. Once its supply of hydrogen is exhausted, the final, dramatic stages of its life will unfold, as our host star expands to become a red giant and then tears its body to pieces to condense into a white dwarf.
so options B is the correct answer.
2》protostar is the answer...
hope its helpfull
20 Amino acids is the answer
Answer:
B. By taking in inorganic substances
Explanation:
When you think of autotrophs, you may think of plants, and how do plants get nutrition?
By taking in inorganic substances like carbon dioxide or sunlight, then converting it into energy.
Answer:
Incomplete decomposition of organic matter due to a lack of oxygen. (Ans D).
Explanation:
Coal is known as the mostly carbon with containing different amounts of oxygen, nitrogen, sulfur, and hydrogen. Coal is formed when Incomplete decomposition of dead plant matter due to a lack of oxygen occurs. In-plant matter because of the pressure, and heat-generating physical, and chemical changes occur which lead to force out oxygen, and carbon deposits left. so, in this time the plant matters become coal.
Coal is divided into three main types which are based on the percentage of hydrocarbon, oxygen, and carbon occurs in the coal.
1) Anthracite coal.
2) Bituminous coal.
3) Lignite coal.
B. Roots take up nutrients and water from the ground like the mouth takes in food and drink.
Hope this helps!!
