Fill in the blanks with the words or phrases given below. Change the form if necessary.

[evaluate; expand; reveal; fertile; convince; impulse; reach; transfer; concrete; productive; take up; right away; fall asleep; back and forth; take advantage of; try to]

1.A most significant function of the weather map is to _ _ _ _ _ _  a general picture of condition in hte air around the earth at a given time.