They are cratered because of meteoroids, neither of them have an atmosphere to disintegrate the meteors, and neither of them have water to erode the craters.
I believe the correct answer would be letter c) circuit breaker
Answer:
a. wedge
Explanation:
The wedge machine is used to separate, lift or split
objects. It is triangular in shape with a tapered formation thick and blunt on one end, thin on the other end (the edge)
Answer:
B = 4.51×10⁻⁵ T
Explanation:
Given that,
The average magnetic field strength of the Earth is 0.0000451 T.
We need to write the value in the form of scientific notation. Any number in scientific notation is written as follows :
N=a×bⁿ
Where
n is any integer and a is a real no
So,
0.0000451 = 4.51×10⁻⁵ T
So, the required answer is equal to 4.51×10⁻⁵ T.