1) From 1949 onward, the artist Georgia O’ Keeffe made New Mexico ______.

2) Just as remote-controlled satellites can be employed to explore outer space, _______employed to investigate the deep sea.

3) In ______ people, the areas of the brain that control speech are located in the left hemisphere.

4) Stars shine because of _______ produced by the nuclear reactions taking place within them.

5) _____ is not clear to researchers.

6) The chemical facts _____ as a by-product of their search for gold became the basis for modem chemistry

7) The fluoroscope makes _____ for medical doctors to view a silhouette of the bones and internal organs of a patient’s body.

8) The second-oldest continuously occupied governor’s mansion in the United States _____ Jackson, Mississippi.

9) A television camera produces an image by convening _____ receives into a series of bright and dark dots.

10) In so-called nonfiction novels, a documentary style is combined with fictional techniques _____actual events and people.

11) Hot objects emit _____ do cold objects.

12) An Olympic marathon is 26 miles and 385 yards, approximately _____ from Marathon to Athens.

13) Although _____ rigid, bones exhibit a degree of elasticity that enables the skeleton to withstand considerable impact.

14) One of the oldest types of aesthetic theory is that of formism, _____ .

15) A panda’s primary activity is sleep, _____ its waking hours looking for food.