allie was in the park playing on the equipment. she noticed that on the highest slide, she slides down
a) without friction.
b) with the slowest speed.
c) with the greatest speed.
d) at about the same speed as the shortest slide.

burning of wood and coal

explanation:

the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.

the answer to your question is b

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.