What's the answer to this question? The light propagates in a straight line and a shadow is formed behind the opaque bodies. This property of light explains:
1. The change of seasons
2. Solar and lunar eclipses
3. Why the moon shines
4. phases of the moon

Which of the following is an advantage of solar energy?

Cell specialization occurs by the process ofa. reproductionb. differentiationc. maturationd. growth

(6.02 mc)what affect do marine protected areas have on environmental quality? they increase environmental quality by preventing resource overuse. they increase environmental quality by adding new species. they decrease environmental quality by removing all human activity. they decrease environmental quality by adding recycling facilities.