Make your own article discussing the effects of hazards and how do people survive in this kind of situation

Remote sensing of the earth's surface and atmosphere may involve the use of what type of instruments?

Earth's atmosphere is unique among the planets and is able to support life because it contains a large amount of a) oxygen b) helium c) methane d) carbon dioxide

Which statement best describes gravity? it is the force that repels only very small objects. it is the force that acts between objects with zero mass. it is the force that sometimes acts only on very large objects. it is the force that acts between any two objects in the universe.