Which of the following is an environment cost of agriculture ?
A . Agronomy
B. Cash Crops
C. pollution
D. Crop Rotation

If a balloon is taken outside on a very cold day, what will occur?

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?