New technology, such as renewable energy sources, has many positive aspects such as a) using nonrenewable resources. b) reducing the emissions of carbon dioxide. c) increasing the annual average temperature. d) increasing the cost of energy sources such as fuel.

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.

When one dna molecule is copied to make two dna molecules, the new dna contains a) 25% of the parent dna. b) 50% of the parent dna. c) 75% of the parent dna. d) 100% of the parent dna. e) none of the parent dna.