Question

ozone molecules are exceedingly rare. fewer than 10 in every million molecules of air. depending on their presence ozone can be either protect or harm life on earth. explain

Answer 1

Answer:

Explanation:

The items below are examples of questions 15-year-olds were asked to answer for PISA. When you click an item in one of the four subject categories, you will see the item image and links to the item questions. Click on these links and a new window will open with a question, its answer, and the percent of students in the United States and other OECD countries who answered correctly.

Reading Literacy Sample Items

Runners

Flu

Labor

Mathematics Literacy Sample Items

Continents

Triangles

Walking

Carpenter

Internet Relay Chat

Science Literacy Sample Items

Ozone

Problem Solving Sample Items

Energy

Movie

Transit

Ozone

Question 1 and Answer   |   Question 2 and Answer

Can these questions on the ozone layer be answered by scientific research?  Circle yes or no.