The longleaf pine has how many needles per cluster?

A. 3
B. 4
C. 5
D. 8

On venus, which of the following drives geological change? a. hurricanes b. volcanoes c. tsunamis d. earthquakes

The ozone hole is at its biggest each year in the ? hemisphere in the ? season.

Ascientist is explaining how background cosmic radiation gives evidence of the big bang theory. she says that radiation has been detected everywhere equally as heat in the universe and is increasing. this has been shown to be residual radiation from the big bang. what error did the scientist make?