The answer is immune system
I think a circle graph would be the best choice.
competition
source: my biology teacher
Many cacti have roots that spread out widely, but only penetrate a short distance into the soil. In one case, a young saguaro only 12 cm (4.7 in) tall had a root system with a diameter of 2 m (7 ft), but no more than 10 cm (4 in) deep.
In other words they can't penetrate that deep.
Since the options have not been given the equation is incomplete. The complete question is as follows:
Thinking sociologically about a problem such as unemployment, we understand that this issue is
-the result of bad choices by individuals.
-inevitable.
-a personal problem.
-a social issue involving the operation of society.
Answer: -a social issue involving the operation of society.
Explanation:
Unemployment occurs when a person who is actively searching for work is unable to get employment. The unemployment is a social issue. This issue requires the operation of the society by the way that more job options and services generate in the society which can help the unemployed people to seek jobs and earn their wages. The government should take initiative to generate job opportunities keeping in mind the skills, expertise and age of the registered unemployed people.