Answer:
There will be no solution for the question.
Explanation:
Assume;
Smaller number = x
Larger number = y
So,
2x = y
and
x - y/2 = 20
So,
y = 2x
x - y/2 = 20
If we put y = 2x
x - x = 20
There will be no solution for the question.
its 9 because the dot on the line is starting from the line
1 china
2 The Amazon river
3 Ángel falls
The answer is; movement toward or away from Earth
Stars that move closer to the observer will be percieved as blue in the electromagnetic spectrum while starts moving away from the observer will appear red and orange. This is what is called the Doppler shift effect. This phenomenon is similar to the higher pitch of the siren of an ambulance approaching you and the low pitch of the siren when the ambulance passes you and is moving away from you.