What are two sources of energy for the earth's system?

A. lighting and sun

B. sun and earth's interior C. the sun and wind

D. earths interior and wind

A parent explains, "my daughter doesn't stand properly because of a difference in the height of her shoulders." the nurse suspects structural scoliosis. which finding supports the nurse's suspicion?

Concerning comb shape in chickens, which of the following is true? Multiple Choice The R gene is dominant to the P gene. The R and P must both be present to produce a walnut comb. R is recessive to r and produces a rose comb.

How does mosquito control decrease infectious diseases? A) Mosquitoes carry pathogens and transfer them to humans. B) Mosquitoes are covered in many pathogenic bacteria species. C) Mosquitoes breed in standing water that contains pathogens.

Consider this statement: Air is matter. Which facts best support the statement? Balloons can be filled with air. Air is essential for life to exist. Air has mass. Air is not an element. To float on air is to be happy. Air can't be seen.

2. How can doctors most effectively destroy the resistant bacteria?

Harmless bacteria are what type of bacteria? Milady chapter 5

Which kind of action is a cause of air pollution? A. Poisons are released into a major river. B. Gasoline is burned by a car engine. C. Trash is dropped in a national wildlife preserve. D. Tuna are fished to extinction.

Which questions can be answered using the scientific process

What Contains tube-like structures that carry water and nutrients

How does the polarity of water allow for life on Earth?