Question

10 multiple choice 4 points
what is a watershed?
a type of water treatment plant
a type of underground reservoir
a man-made canal
an area of land where all the surface water drains into a single river or lake
11 multiple choice 4 points
what is an example of an ecosystem service provided by nature?
building of houses
manufacturing of cars
recycling of plastic bottles
cleaning of air and water by plants
12 multiple choice 4 points
what type of rock is formed from the cooling and solidification of molten lava or magma?
igneous
sedimentary
fossilized
metamorphic

Explanation:

• Question 10: A watershed is defined as an area of land where all the surface water drains into a single river or lake. Water treatment plants are for purifying water, underground reservoirs store water underground, and man - made canals are artificial waterways.
• Question 11: Ecosystem services are benefits that nature provides. Cleaning of air and water by plants is a natural process. Building houses, manufacturing cars, and recycling plastic bottles are human - made activities.
• Question 12: Igneous rocks are formed from the cooling and solidification of molten lava (extrusive igneous rocks) or magma (intrusive igneous rocks). Sedimentary rocks form from the accumulation and lithification of sediments. Fossilized is not a main rock type category in the basic rock classification. Metamorphic rocks form from the alteration of existing rocks due to heat, pressure, and chemical processes.

Answer:

1. An area of land where all the surface water drains into a single river or lake
2. Cleaning of air and water by plants
3. Igneous