52. Ecosystems

Imagine you’re tracking a water molecule frozen in snow on land. Which of the following is a possible path it could take to eventually end up as part of the ocean?

Which of the following statements is false?

You are tasked with restoring a degraded ecosystem that has experienced a shortage of nitrogen. Which of the following steps could you take?

Which of the following answers correctly completes the diagram below?

Which of the following statements is true?