The ____ of a substance is its ability to cause injury, illness, or death to a living organism.
A. toxicity
B. biomagnification
C. persistent
D. response
E. dose
Answer: A
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A cart travels 5 m in 1 s, then 5 m again in 2 s, then another 5 m in the third second. The acceleration of the cart is
A. 10 m/s2. B. 0 m/s2. C. more than 10 m/s2. D. 5 m/s2.
Which of the following often forms after continental rifting?
a) a new continent b) a new mountain c) a transform boundary d) a subduction zone e) a new ocean basin
What area of Europe tends to attract the greatest number of migrants?
A) Baltic Republics (Estonia, Latvia, Lithuania) B) eastern Europe (Poland, Slovakia) C) northwestern Europe (Germany, United Kingdom) D) northern Europe (Norway, Sweden) E) southeastern Europe (Albania, Greece)
Quick clay is
A. clay that expands when wet, contracts when dry. B. clay that forms very steep cliffs, which slide rapidly when they fall. C. clay that is too unstable for plants to grow on. D. a marine deposited mixture of glacially derived clay and silt weakened by infiltrating fresh water upon uplift of these sediments above sea level.