Place a 1-kg block of iron at 40°C into a kilogram of water at 20°C and the final temperature of the two becomes
A) less than 30°C.
B) at or about 30°C.
C) more than 30°C.
A
Environmental & Atmospheric Sciences
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A) acidity, sulfates and heavy metals. B) BOD wastes. C) sediment. D) nitrate and phosphate nutrients.
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A) sandstone B) basalt C) granite D) limestone
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A. forms of energy B. equal in mass C. subatomic particles D. negative ions E. charged particles
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