Scandium is a chemical element so you cannot eat scandium
It’s probably decrease of balsam fir but don’t take it from me I’m just tryna answer a question so I can complete the login sorry m8.
To begin, you have to know what meiosis is. Meiosis is when a cell breaks into four daughter cells (like mitosis but with two extra daughter cells). Those four cells are still part of the parent cell, so they retain the genetics of the parent cell but split-up. So those cells are part of the foundations of the genetic build-up of the offspring.
Answer:
<em>The correct option is A) they are all classified as pure substances.</em>
Explanation:
Pure air is a term which is used to described air which is free from pollutants or other contaminants. All the substance from which air is made are considered as pure substances. Hence, option A is correct.
Other options, like option C, is false because the components of the air are no chemically bonded to one another. They exist freely. Options D is false because not all the components of air can be classified as an element. For example, carbon dioxide is not an element.
Punnett square-
R r
R RR Rr
r Rr rr
So RR, Rr, and rr are possible outcomes.
The answer is D.
