What do we call the time it takes a planet to revolve around the sun

Why are shark population in decline worldwide?

Read the article titled "greening the globe." according to the section titled “the contention,” the debate over climate change has two basic camps of thought. identify these two camps and their beliefs. give examples of who supports each one and explain what evidence they use to support their arguments. based on these arguments, which way of thinking do you agree with and why?

What geologic process is related to caldera formation?