This is a chose all that apply question

what major factors affected earth's changing climates?

1.) meteor impacts

2.) volcanic gases

3.) earthquakes

4.) mass extinctions

5.) milankovitch cycles

remember: chose all that apply.

Meteor impacts, volcanic gases, and Milankovitch cycles (1, 2, 5)  

Explanation:

Meteor impacts: It is the visible path of a meteoroid that has entered the earths atmosphere. it is debris in the solar system that varies in its size. Most meteors burn up in the atmosphere and they can hit the ground with massive force spreading that kinetic energy over a wide area of soil

Volcanic gases: these gases are trapped under great pressure in molten rock that gives eruption its explosive power for climate the key gas is Sulfur dioxide once it gets into the stratosphere Sulfur dioxide from the water mixes with water forming tiny sulfate particles , the absorb some sunlight as a result warming up the stratosphere

Milankovitch Cycles: Orbital and axial variations change the climate. Global warming is also instigated by Milankovitch Cycles  

your answer is "the 1950's"