Which of the following is an important characteristic of an index fossil?

Which of the following is true of earthquakes?

Based on the diagram below, which of the following statements is most likely to be true? 

Which of the following statements about “alternative energy sources” like geothermal, biofuels, hydroelectric, wind, solar, and fuel cells is false?

In order to save money on living expenses, you have decided to take up residence in a cave.  In which of the following rock types would you have the best chance of finding your new abode?

Basal sliding of a glacier occurs because of _______________.

The hand signal for raise the tines is?

The hand signal for stop is?

Use a safety harness with a fall-arrest lanyard at heights over ___ feet 

A knot made of two reverse half-knots and typically used to join the ends of two ropes of similar diameters; also called a reef knot.