The zenith appears on October 01st. At the same day, find the altitude of the sun at noon at Beijing city (39.900N), China. The subject is Earth science.

1."lessen the worth of ."

2."increase the worth of."

3." beyond the worth of."

4."against the worth of ."

b. 20: 5

explanation:

20% of the worlds population lives in southwest asia, and less than 5% of the world's

land area.