Explanation:
As I think vector is the correct one.
A person that studies rocks minerals and earth's land forms are geologist
Both. You can use it as singular or plural.
<span>Forebrain. Forebrain is related to functions of cognitive activities. It is part of brain with other two parts which are hind brain and mid brain. Amygdala related to emotions. Midbrain related to vision, hearing etc. while hindbrain is concerned with control involuntry functions like respiration.</span>
