In some areas, mountains block rain, so one side may be rainy while the other is dry. the mountains create a barrier for wind as well, so the climate on one side can be warm, and cold on the other
Answer:
Explanation:
Start contour plowing on the slopes where landslides happen.
and
Plant vegetation on the slopes that experience landslides.
In a plane mirror, your (virtual) image is exactly as far behind the mirror as you are in front of the mirror. So the image will approach you at twice the speed that the mirror approaches. That’s 20 m/s.
Use the formula for thin walled lens which is
(n₂-n₁) / r = [n₁ / p] + [n₂ / q]
<span>(n</span>₂<span>-1) / r= [1/oo] + [n</span>₂<span>/ 2r]</span>
The first term on the left is very close to zero.
You can then solve for n₂ which will result to 2.<span />
