Which explains how winds cause waves?
a.
winds evaporate water from the surface and increase the salt content. as the salty water sinks, it creates waves.
b.
high-pressure air from the blowing winds presses down on the surface and creates waves.
c.
friction between the blowing air and the water drags the water along and creates waves.
d.
winds cool the surface water. as the water sinks, it creates waves.

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

Which description provides the best objective summary of the article in the passage?

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !