Question 5 (1 point) Researchers have learned that the Ozone layer over Antarctica is getting thinner.
What is the ozone?

A. gas in atmosphere that absorbs harmful ultraviolet radiation

B. a thick slab of ice that is attached to a coastline but floats on the ocean

C. the process of ice breaking free from an ice shelf or glacier

D. strong, fast winds driven by the force of Earth's gravity

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a researcher conducts a comparison of the comments made in a publicly available blog and the blogger's comments on a similar topic in a weekly magazine. undergraduate students in a field methods class are assigned a research question and asked to interview another classmate, to be followed by a class discussion on interview techniques. a cognitive psychologist enrolls undergraduate students for a computer-based study about the effect of mood on problem-solving behaviors. a researcher sets up a meeting with the superintendent of a large and diverse public school system to get data about the ethnic composition of the school system and the number of students receiving free lunches.