Which of the following actions will help to decrease the single greatest use of domestic water in the United States?
a. use a drip system in your garden
b. use a low-flow shower head
c. use native plants in your landscaping that do not require a lot of extra water
d. install a water-saving toilet tank
e. use grey water to water your houseplants
D
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Organisms that break down bodies of dead plants and animals into nutrients that are released into the soil or water are called
a. Detritivores b. detritus feeders c. Decomposers d. Scavengers e. Omnivores
In a volume of air near the earth's surface, __________ occupies 78 percent
and __________ nearly 21 percent. a. nitrogen, oxygen b. hydrogen, oxygen c. oxygen, hydrogen d. nitrogen, water vapor e. hydrogen, helium
Since the fall of the Soviet Union, ethnic conflicts have troubled Tajikistan, and Kyrgyzstan
Indicate whether the statement is true or false
Woody shrubs (called chaparral or maquis) and widely spaced, stunted trees with occasional patches of bunchgrass are the dominant vegetation types in:
a. tropical rainforest and tropical savanna borders b. humid continental climates c. desert climates d. Mediterranean climates