1
Q
The crust of Mars is thought to be:
A
Thick.
2
Q
The rings of Saturn are caused by:
A
A moon made out of ice getting too close to Saturn and being shredded into small chunks of crushed ice.
3
Q
The Drake equation is:
A
A way of estimating the number of planets with intelligent beings in our galaxy with a technical capability at least equivalent to our own.
4
Q
The SETI (Search for Extra Terrestrial Intelligence) project is attempting to make contact with intelligent beings on other worlds. The best method now thought to do this is by:
A
Radio communications.
Astronomy 100
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