The fittest species for a certain biome will adapt and change so as to keep living. This process is evolution and an example can be giraffes. If they had smaller necks, they couldn't reach the tree tops where food is, so only the fittest one with large necks survived, and they evolved by having the entire species grow up with large necks.
Answer: The correct option is D.
Explanation:
In option A:
The names of both the ions are correct but the representation of lithium ion is wrong. Lithium forms a cation and here lithium anion is shown. So, this option is not correct.
In option B:
Here, the representation and name of is written wrong. This ion has a representation of and is named as oxalate. So, this is not correct.
In option C:
The representation of both the ions is correct but the name of is chloride, not chlorate. So. this is not a correct option.
In option D:
The representation and names of both the ions are correct.
Hence, the correct option is D.
Biotic Resources are based on living organisms. These are obtained from
the biosphere. Examples are animals, birds, forests. They can reproduce
themselves!
Abiotic Resourcesare based on non-living organisms. They are obtained
from lithosphere, atmosphere and hydrosphare. Examples are water, air,
minerals. They cannot reproduce themselves.