Answer:
Gravity?
Explanation:
These are the things needed for life: water, air, food, light, shelter, and space. It doesn't include gravity.
The iris focuses light rays before they enter the posterior portion of the eye
Could you add a little more to this question, please?
Answer:
In humans, there is a readiness to perceive ourselves on priority and favorably. This is one of the reasons that helps in increasing the remembering memories of events that are favorable to the individual which results in benefits, it is known as self-serving bias.
Self-esteem is something that helps in knowing the self-worth and the importance of happiness of one's own. Being aware of environmental control result in achieving better in life and experienced less stress. The potential use of the capabilities of individuals results in increasing awareness about what is the purpose of the life of an individual.
Plants get their required nutrients from the soil.