A change in base level leading to formation of stream terraces can come about by

____________________ of the land over which the stream flows, or a(n) ____________________ of
sea level. Fill in the blank(s) with the appropriate word(s).


uplift, lowering

Environmental & Atmospheric Sciences

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Outdoor air pollutants

A. can travel via prevailing winds. B. are a low risk human health problem. C. mostly occur in rural areas. D. are increasing in developed countries. E. are not regulated in the United States.

Environmental & Atmospheric Sciences

Describe how the three principles of sustainability can be applied to create a successful ecocity.

What will be an ideal response?

Environmental & Atmospheric Sciences

NGOs include environmental organizations.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

Acute toxicity differs from chronic toxicity in which of the following ways?

A. Acute toxicity has a low LD50. Chronic toxicity has a high LD50. B. Acute toxicity can occur with a single exposure. Chronic toxicity requires repeated exposures. C. Acute toxicity results in death. Chronic toxicity results in serious illness. D. All of these statements are correct. E. None of these statements is correct.

Environmental & Atmospheric Sciences