complete the analogy below.
antarctica : continental glacier : : : alpine glacier
a. snow
b. smaller
c. himalayas
d. greenland

i'd say that the moon rock is about 2.2 billion years old.

1. b.

2. d.

3. a.

5. d.

6. c.

these are the only ones that i know, i hope this , and good luck.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.