In your own words, explain how changes in solar activity affected global climate in the past.

While solar changes have historically caused climate changes, the sun is mostly likely responsible for less than 15 percent of the global temperature increases we've seen over the last century, during which human-caused changes such as increased greenhouse gases caused the majority of warming."

Explanation:

sorry it was nat from my words, its from the internet : )

reflecting point a across the origin negates both of its coordinates.

b = (5, -4)

brave new world, aldous huxley (1932)