In order to account for uncertainty, regulators typically set allowed levels of exposure to toxic substances at 100 or even 1000 times the estimated harmful levels.
Answer the following statement true (T) or false (F)
False
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Ecological and climate change ____________________ are irreversible and should never be crossed
Fill in the blanks with correct word
What is a nation-state?
A) a large group of people with shared sociocultural traits and a political identity with clear territorial boundaries B) a cultural group with shared sociocultural traits that poses a homeland within a larger country C) a country that has two or more states, for example, the U.S. D) a large cultural group with many different sociocultural traits and its own fully independent political territory E) a large cultural group that possesses a homeland within a larger country
Smoke emitted into a stable atmosphere tends to spread horizontally, rather than mix vertically
a. True b. False
The second law of thermodynamics states that
A. energy exists in both potential and kinetic form. B. life forms cannot survive without energy. C. energy cannot be shifted from one form to another. D. whenever energy is used, some becomes converted to a form difficult to use to do work.