Answer:
A rainbow is made out of light striking water droplets.
Explanation:
A rainbow is a climatic occurrence that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum or a a band of colors appearing in the sky. It takes the form of a multicolored circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.
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Ask a class mate or search in geography textbook
The seismic waves that shake the ground in a vertical fashion are Rayleigh waves-surface waves.
Rayleigh waves-surface waves move in an elliptical motion. They can be both vertical and horizontal component of motion in the direction of wave propagation. They are caused by earthquakes.
You didn't show a picture of the tree so I don't know either