Answer:
d
Explanation:
desertification is the cutting down of trees the best way to fight the cutting down of trees is to plant more in order for them to grow
Ring of Fire. The Ring of Fire, also referred to as the Circum-Pacific Belt, is a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes.
Answer:
It ranges from 2 to 13 km/s depends upon composition.
Explanation:
The velocity of seismic waves are different throughout the earth because of different composition of the layers inside the earth. Velocity of seismic waves increases with depth and it is approximately 2 to 8 km/s in the Earth's crust whereas, 13 km/s in the deep mantle so it means the velocity of seismic waves is higher in the mantle as compared to earth's crust due to different composition of layers between the mantle and earth crust.
