For a given medium such as air, sound has a slower speed at lower temperatures. Having read the above passage, choose the right answer to the following question (choices are increase or decrease ): If Mary is blowing an air horn underwater and she raises the temperature of the water, what will happen to the speed of the sound waves generated by the air horn increase or decrease?
increase

(Question)
For a given medium, sound has a slower speed at lower temperatures. Having read the above passage, choose the right answer to the following question (choices are cold. or hot ): When Dave screams outside he notices that the sound travels at different speeds in different temperatures. The sound travels slower when it is cold. or hot?
(Answer)
cold.

Ques: In transipration, at warmer temperatures water molecules move faster, and the rate of evaporation from stomata is therefore much faster. Having read the above passage, choose the right answer to the following question (choices are increase or decrease ): James left a pot of water in the refrigerator. As the water started to cool down, what would happen to the rate of evaporation increase or decrease?
Ans: decrease

(Q).
With fewer trees, the air is drier and droughts are more common. Having read the above passage, choose the right answer to the following question (choices are decrease or increase ): The logging company in your town is proposing they plant several thousand acres of trees. If they do so, the chances of droughts in your area will decrease or increase?
(A).
decrease

Ques:The stratosphere contains the ozone layer, the temperatures increase as altitude increases. Having read the above passage, choose the right answer to the following question (choices are higher or lower ): As you travel below the ozone layer the temperatures become higher or lower?

Ans:lower

If we have two materials with the same volume, the material with a higher mass will be more dense. Having read the above passage, choose the right answer to the following question (choices are feathers or bricks ): If we have a bag of feathers and a bag of bricks of the same volume, the lighter item will be the feathers or bricks?
feathers