Question

understand main ideas

1. where is the largest percentage of water located?

a. groundwater c. oceans
b. rivers d. glaciers
use the diagram below to answer question 30.

1. in which area of the lake is there likely to be the greatest diversity of plankton?

a. littoral zone c. profundal zone
b. limnetic zone d. aphotic zone

1. which best describes the intertidal zone on a rocky shore?

a. the dominant low - energy community is likely to be an estuary.
b. the communities are adapted to shifting sands due to incoming waves.
c. the communities are stratified from the high - tide line to the low - tide line
d. the organisms in the community constantly require dissolved oxygen.

Explanation:

• For question 29: Oceans hold the largest percentage of water on Earth.
• For question 30: The limnetic zone has more light and nutrients, promoting greater plankton diversity.
• For question 31: The intertidal zone on a rocky shore has communities stratified from high - tide to low - tide line.

Answer:

1. C. oceans
2. B. limnetic zone
3. C. The communities are stratified from the high - tide line to the low - tide line