Read the excerpt.

Which type of keyword is "Deforestation"?

Deforestation

Rain forests clean the air by producing oxygen. They are

also known to affect the water cycle and weather. The threat

of deforestation, however, means that these important rain

forests may disappear.

a clue

a title

a date

an abbreviation

Witch type of microscope is used to view very small cell components like proteins and dna?

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. label the following topographic map. click on a label below the map to select it, and then click on the appropriate box on the map to place the label. (increments for contour lines is 50 ft).

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above