?Match the term with the correct description.
A. ?amount of a harmful chemical that a person has ingested, inhaled, or absorbed through the skin at any one time
B. ?health damage resulting from exposure to a chemical
C. ?a measure of the ability of a substance to cause injury, illness, or death to a living organism
D. ?resistance to degradation that allows some chemicals to remain in the body and have long-lasting harmful health effects
E. ?certain level of exposure to the chemical that must be reached before any detectable harmful effects occur
A. ?dose
B. ?response
C. ?toxicity
D. ?persistence
E. ?threshold
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Which of the following are characteristics of actively erupting volcanoes?
A) Glowing orange lava flowing downhill.
B) Fragments of molten rock blasting into the air.
C) Billowing clouds of ash rising into the air.
D) All of these are correct.
________ is the only large landmass in the world that is not part of a sovereign state
A) Antarctica B) Greenland C) The Arctic Circle D) The Amazon Forest E) The Himalaya Mountains
Compaction of soil in a garden harms plants by ________
A) increasing aeration, increasing infiltration, and decreasing runoff B) decreasing aeration, increasing infiltration, and decreasing runoff C) decreasing aeration, decreasing infiltration, and increasing runoff D) increasing aeration, decreasing infiltration, and increasing runoff
Most basaltic rocks are high in Potassium-rich feldspar and muscovite mica.
Answer the following statement true (T) or false (F)