Which terrestrial planets lack seasons? Why?
What will be an ideal response?
Mercury and Venus are both so close to the Sun that it probably tidally locked their equators toward it. Without an axial tilt the angle of the Sun's rays never changes so there are no seasons.
Physics & Space Science
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What's a decay chain?
a. a nuclear chain reaction b. one radioisotope decaying into another, which decays into another, and so on c. the triggering of multiple fissions by a single neutron d. none of the above
Physics & Space Science
Which of the following stars is an example of a spectroscopic binary system?
A) Mizar B) Triton C) Europa D) Ceres
Physics & Space Science
All minerals exhibit cleavage.
a. true b. false
Physics & Space Science
The United States' most abundant fuel supply is ______________
Fill in the blank(s) with correct word
Physics & Space Science