Why might polar bears become extinct

a. They do not have any predators

b. they may drown when the glaciers melt

c. their thick fur is not suited for a warming climate

d. too many hurt them

2. Do you think you suffer from the "CSI effect"? Why or why not? What problems do you think this "effect" has on the criminal justice system?

What types of features would be visible if the oceans were drained?

Definition of decolonization

Earth's magnetic field is generated by the? A. Mantle B. Lithosphere C. Outer core D. Inner core E. Crust

In the human heart, blood passes through the heart twice in one cardiac cycle and oxygenated blood is kept separate from deoxygenated blood. This is known as

A rain forest has a high level of biodiversity because it has

Which best explains how the body maintains homeostais? A. All systems work together to match the external environment B. All systems work together to stabilize the body C. Each system works interdependently to stabilize the body D.

It is an effect that drug use can have on society? A. Drug use increases pollution. B. Drug use leads to an increase in criminal activity. C. Drug use increases the spread of disease. D. All of the above

Which of the following affects the speed of light waves in a material? Angle at which the ray strikes the medium Color of the material Density of the material Temperature of the light wave

What does the nosepiece do on a microscope