Over the oceans, evaporation exceeds precipitation, yet the sea level does not drop. Explain why.

Why is the amount of precipitation that defines the boundary between humid and dry climates variable ?

Conjugar complete the chart with the appropriate verb forms (decir).

What is a longitudinal profile?

You've just put a new wood floor in your house. An object will dent the flooring if the stress-the force divided by the area-exerted by the object is great enough. Who is more likely to dent your floor: a $50 \mathrm{~kg}$ woman in high-heeled shoes (assume a circular heel pad $0.50 \mathrm{~cm}$ in diameter) with all of her weight on one heel or a $5000 \mathrm{~kg}$ African elephant (assume a circular contact area of $40 \mathrm{~cm}$ in diameter for one foot) standing on all four feet?

Which of the following statements is true based on recent research: A. Many students want to drink in safer ways B. Many students don’t drink at all in college C. Only a small amount of students are frequent heavy drinkers D. All of the above

If you collect a jar of water from a stream, what part of its load will settle to the bottom of the jar? What portion will remain in the water indefinitely? What part of the stream's load would probably not be represented in your sample?

What is a graded stream?

Give one example of evidence that supports the concept of crustal uplift .

Compare and contrast the three types of convergent plate boundaries.

What is meant by the term evapotranspiration?

Volcanoes form above subduction zones because ________.

What types of faults are most commonly associated with fault-block mountains?

What is emitted from a fumarole ?