Which of the following is a probable source of earths magnetic field?

A. the sun B. the earths tides C. earths outer iron core D. the moon

The atmosphere of Venus has a powerful greenhouse effect caused by large quantities of which gas? Carbon dioxide Methane Nitrogen Oxygen

What force holds atoms together in a compound

Three bases found on mRNA are called a?

Which is not a major source of groundwater pollution? a pesticides b compost c chemicals d sewage

This experiment is an example of hypothesis-based science. What question did the researchers ask? What question did the researchers ask? Do male guppies in pools with pike-cichlid fish have brighter color patterns than females in the pool?

After complex organic molecules have been absorbed in the small intestine, what materials are left behind?

What makes the trash in this landfill more of an environmental blight than the trash found in other trash dump areas? A) It is bigger. B) It is smellier. C) It won't disappear. D) It is harder to see.

What effects do currents have on objects in the ocean

Write the mrna base sequence that would result from the transcription of this segment of dna

Which data collections show bias? Check all that apply. An English teacher polls the top-ten most avid readers to find their favorite books. An insurance company polls drivers of sports cars to find their average number of tickets.