Which factor activates a convection current, starting the flow of a fluid?

cold temperatures at the north pole

iron-rich rocks in the mantle

heated liquids at Earth's surface

temperature differences in the mantle

What type of fracture to the floor of the orbit will result from a direct blow to the eye?

Cultures are similar in their influences on an individual's emotion in which of the following ways? A. labels for emotion B. situational influences on emotion C. cultural expectations concerning emotion D. social gestures characterizing emotion

Which statement is true? A. The earth's moon is thought to have formed when a Mars-sized planet collided with Earth during its final stages of planetary accretion. B. Without the earth's moon, life on Earth would not be possible. C.

Polygenetic traits are a. controlled by more than one gene b. controlled by a single gene c. do not exist in multi cellular organisms d. can not be inherited

What occurs when sediment reaches its final destination. A. Erosion B. Deposition C. Weathering D. Transportation

Which kind of volcano is most likely to form from this plate movement

Which type of short term contraceptive method is generally more effective than others? barrier hormonal natural family planning withdrawal

Water covers over two - thirds of Earth's surface. Yet water shortages are a major problem for many people around the world. Why do you think this is the case?

Which of the following is not true about cells? 1) All living thing begins life as a single cell. 2) The cell is the basic unit of the structure and function of life. 3) It takes many cells to make a complex organism.

Is mold that grows on bread a decomposer a producer or a consumer