Describe what would happen to the earth if we had too much or too little greenhouse gases ? actually environmental science buh i need it for now please :/

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.