The warming of the Earth due to buildup of carbon dioxide and other gases that help trap energy is termed the greenhouse effect.
Because the exchange of incoming and outgoing radiation that warms the earth because heat trapped is close to Earth's surface by “greenhouse gases.” These heat-trapping gases can be thought of as a blanket wrapped around Earth, keeping the planet toastier than it would be without them.
Green house gases:
1) Carbon dioxide (CO2)
2) Methane (CH4)
3) Nitrous oxide (N2O)
4) Industrial gases:
a) Hydrofluorocarbons (HFCs)
b) Perfluorocarbons (PFCs)
c) Sulfur hexafluoride (SF6)
d) Nitrogen trifluoride (NF3)
The concentration of greenhouse gases is increasing in large part because of the combustion of fossil fuels. Key sources of chlorofluorocarbons are solvents, refrigerants, and propellants.
#SPJ4
The biosphere is all living things on earth
There are many factors that encourage migration, among them are wealth,
education, religion, access to better job opportunities and better
healthcare and personal reasons (family).
Therefore the one factor that does not influence migration is listed in option c:
c. Healthcare and education are not pull factors that encourage migration.
