Grass, water, natural growing things, sun
In the 31 countries at the bottom of the list, 28 of which are in sub-Saharan Africa, a person can hope to live on average only 46 years, or 32 years less than the average life expectancy in countries of advanced human development, with 20 years slashed off life expectancy due to HIV/AIDS.
Arenal Volcano is in the middle of the continent
Answer: Body waves travel through earths interior while surface waves travel along the earths surface. Body waves travel more rapidly than surface waves.
Explanation: