Which of the following may be true ? A. The change of an ice age is increased. B. We may see more rainbows. C. The greenhouse effects are increased D. Calcite dust is common in arid areas
Which of the following may be true ?
A. The change of an ice age is increased.
B. We may see more rainbows.
C. The greenhouse effects are increased
D. Calcite dust is common in arid areas.