NEED HELP ASAP PLZ Write T or True if the statement is true; write For False if the statement is false.
1. The greenhouse effect is a natural process that supports life on the earth for millions
years.

2. The majority of the Earth's atmosphere is composed of nitrogen and oxygen,
greenhouse gases comprise only a tiny fraction of the atmosphere.

3. All greenhouse gases are created as a result of human activity.

Plants that have reproductive structures called cones are?

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

The theories on the expansion of galaxies maybe re-examined to strengthen science should not be tested to strengthen science will weaken scientific knowledge if they change will become laws if they don't change