At the end of meiosis, there are four "n" cells. Explanation: A diploid cell starts out with one 2n cell. The cell replicates its own DNA by using chromosomes, which are a combination of protein and DNA
b) LiH (s) + H₂O (l) --> LiOH (aq) + H₂ (g)
When an alkali metal reacts with water it always produces the metal hydroxide and hydrogen gas which is liberated into the air.
2M(s)+2H₂O (l) →2MOH (aq)+ H₂ (g)
Lithium reacts with water very vigorously.
Alkali metals need to be stored under oil to prevent them from reacting with the oxygen and water vapour in the air. The reactivity of the alkali metals increases down the group.
Alkali metals consist of the following metals:
Lithium, sodium, potassium, rubidium, caesium.
Lithium, sodium and potassium also react vigorously with water and produce hydrogen gas and which is liberated in the air.
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Answer:
D.It restores trees to areas where they once grew.
Explanation:
This is because reafforestation is the process where new tress are planted either natural or intentionally stocking of new tress to areas where the trees has been depleted before or defforested before. It restores new tress to the area or it support the growth of new trees.
Answer:
a usually reversible change in the physical properties of a substance, as size or shape
<u>For example:</u>
Freezing a liquid is a physical change.