A low birth rate and environmental hazards are two things that can cause a population to decrease.
A low Birth Rate and environmental hazards are two things that can cause a population to decrease.
The question is too ambiguous to answer. You may as well ask "what two things can cause error in geography"?
There are two things that cause it which are the earths orbit and thetilt of the earths axis.
because sun
There are several things that cause rainfall fluctuations. Two things that will cause rainfall to vary is the location and temperature.
ttiytdiyirdui
moon and wind
heat and pressure
Silica and pressure
blowing holding
doodoo