Answer:
Without naturally occurring greenhouse gasses the Earth would turn very cold.
Explanation:
Greenhouse gasses lock in heat so without them all of the heat from the sun would be released into space.
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.
I believe it will be:
cccff
is about 55 miles at its narrowest point. so around 50 miles would be the answer.
