To determine the level of soil pollution across several states, a scientist would most likely use which method of gathering data?

scientific survey

observation of animals drinking the water

controlled experiment

scientific modeling

Which of these is NOT a function of the skin? to protect the body against outside invaders to keep the body at a constant temperature to release chemicals that control blood sugar to allow the body to feel when something is touching it

What is the major product of the calvin-benson cycle that can then be used to form glucose?

Describe how the names of the nonmetal elements in Model 2 are changed when they are in their anion forms

Which tool has been used since the 1930s to guide government policy about the economy? A. Externalities B. wealth index C. gross domestic product D. natural resource reserves

The flesh of a cut apple turns brown when left out in the air. Is this a chemical change or a physical change? Why?

What happens to the volume of a substance as temperatures rises?

Find the total number of atoms in a sample of cocaine hydrochloride, c17h22clno4, of mass 22.5 mg.

What is the relationship between chemical equilibrium and the rates of forward and reverse reaction

What is the valence of Fluorine

When liquid helium is exposed to room temperature, it forms a gas. Which best explains why this happens? The liquid helium absorbs energy from the air in the room. The particles in the air absorb the energy of the liquid helium.