What is global warming? what can people do to reduce global warming? best answer will be marked as brainliest.

GLOBAL WARMING IS...
a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants.
WHAT PEOPLE CAN DO TO REDUCE GLOBAL WARMING...
1) Reduce Fossil Fuel Use.  Burning fossil fuels increases the levels of greenhouse gases in the atmosphere.
2) Plant Trees. Because carbon dioxide is the most important greenhouse gas, planting trees and other plants can slow or stop global warming.
3) Reduce Waste.
4) Conserve Water.

Since a female is both xx chromosome and the male passes down the x chromosome, than the offspring would be female since a female is xx.