Answer: "iris" .
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Answer: A wave
Explanation: Waves move in that kind of up and down motion, a circuit is a straight line with energy flowing through it, a magnet is a pulling effect and a prism is a shape, not necessarily a motion.
Hope this helps ^_^
Proteins and fats i believe... Its been awhile.
Over utilisation of resources is the unlimited and careless use of any resource or utility. It refers to the excessive use of something to a point that in return we are deteriorating the resource. It can also be termed as exploitation or sustainable use. In the 21st century, we must focus on sustainable development and not over-utilisation of resources.
Answer:
Lack of shelter.
Explanation:
Although I cannot see the graph of the population over time, I am assuming it was exponentially rising and then began to decline. This is because the parrotfish were able to populate only until the species ran out of shelter. Once it ran out of shelter, the exposed fish began to die due to predators or the environment.
It may also be because of the drastic decline of living coral reefs. As coral reefs die, so do livable habitats for the parrotfish. As a result, the parrotfish decrease in population as fewer corals are available for the fish to live in.