Question

aquifers.

1. what does the passage mean when it says aquifers can range from \small, local pockets to vast, regional underground reservoirs\?

a. aquifers are always the same size everywhere.
b. aquifers are large lakes under the ground.
c. aquifers can be tiny in one place and very large in another.
d. aquifers are only found in deserts.

1. which type of rock does the passage say makes excellent aquifers?

a. sandstone and limestone, because they are porous and permeable.
b. granite, because it is very dense.
c. volcanic rock, because it cools quickly.
d. any rock that is very hard.

Explanation:

For question 4, the phrase "range from small, local pockets to vast, regional underground reservoirs" directly indicates size variation across locations. For question 5, the option specifies sandstone and limestone as excellent aquifers due to porosity and permeability, which are key properties for storing and transmitting groundwater.

Answer:

1. C. Aquifers can be tiny in one place and very large in another.
2. A. Sandstone and limestone, because they are porous and permeable.