Which source is considered a primary source of scientific information? an original research article in a scientific journal
a report about a new scientific discovery in the newspaper
a book that compiles important new research findings
O a public lecture at a museum given by the scientist who did the research

In a scientific experiment, a is any factor that can be changed or be changed

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.

Plz asap can someone find the answer or the mark scheme or anything plzzz you : ) ‘it's perfectly understandable that hundreds of millions of people around the world live close to volcanoes’ use evidence to support this statement. (6 marks)