When work is done by a system and no heat added to it, the temperature of the system
A) increases.
B) decreases.
C) remains unchanged.
B
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The evolution of _____ is well recorded in the fossil record
A)horses B)camels C)elephants D)rhinoceroses E)dogs
Playas are ____
a. ancient Pleistocene shorelines representing a past, more humid climate b. ancient abandoned river courses representing a past, more humid climate c. intensely gullied d. occasionally and at least partly flooded with water
When the _______________ collapsed in 1991, the bordering countries declared independence and began the process of integration into the European community.
-Common Market -German Empire -Soviet Union -Berlin Wall -euro
What is used at Cognito Farm to control fly larvae in the pasture?
a. ultraviolet radiation b. all natural organic pesticides c. chickens d. insect traps e. chemical pesticides