Answer:
b. measuring the pulsations of the Sun from stations around the world.
Explanation:
The Global Oscillation Network Group (GONG) is a community-based program that wants to conduct a detailed study of the internal structure of the sun by using helioseismology. GONG relies on a team of six observatories around the world to perform its work. One of the duties of GONG is to measure the pulsations of the Sun from six stations located all over the world.
Water quality is a great concern for sub Sub Saharan Africa's rural population. It is basically a region where water is very scarce and finding the right quality of water for drinking and cooking purposes is very hard for the rural people of this region. I hope the answer helps you.
<span>I found these studies about d</span>eforestation in 2009<span>, 2/3 of the world forests were in 3 top countries: 1) </span>Russia<span>, 2) </span>Brazil<span>, 3) </span>Canada
Medicine and safety regulations at the work place.
