1.   The sunlight is white and blinding, throwing hard-edged shadows on the ground.

2.   The sunlight outside was dazzling, despite a bank of ominous dark clouds on the horizon.

3.   Arctic air masses form over the snow-covered tundra of northern Canada where sunlight is dim or absent.

4.   But they required sunlight to power photosynthesis, and most scientists believe that on Earth, at least, sunlight was essential for life to originate.

5.   Direct sunlight is a bit much for a Christmas cactus, too.

6.   Dr. Edward Weiler, head of space science at NASA, said nuclear generators were necessary for outer planet missions, where sunlight is faint.

7.   Filtered sunlight through pines is ideal.

8.   However, some exterminators have used methyl parathion indoors, where there is no sunlight to break it down, causing major environmental problems.

9.   If you feel inadequate sunlight is a problem, go with more shade-tolerant plants.

10.   Inadequate sunlight could be a factor in poor flowering.