Question

Question 22 pts
(03.02 MC)

Which of the following is a human activity that can cause a freshwater resource to become depleted of dissolved oxygen?

Group of answer choices

Increased death of aquatic organisms

Use of fertilizers on farms and yards

Decrease in algae and microorganisms

Using more plastics and paper products

Flag question: Question 3
Question 32 pts


(03.04 LC)

Which marine ecosystem is considered the rainforest of the sea because it is home to highly diverse aquatic species?

Group of answer choices

Coral reefs

Neritic zones

Intertidal zones

Kelp forests

Answer 1

Q1: Use of fertilizers on farms and yards — nutrient runoff causes algal blooms and eutrophication, whose decomposition depletes dissolved oxygen.

Q2: Coral reefs — they're called the "rainforests of the sea" because they support very high biodiversity.