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"?
because sun
There are two things that cause it which are the earths orbit and thetilt of the earths axis.
There are several things that cause rainfall fluctuations. Two things that will cause rainfall to vary is the location and temperature.
Silica and pressure
heat and pressure
moon and wind
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Two drawbacks of recycling copper are that it causes secondary pollution and it is harder to purify in the event of other metals getting into it.
In a wave, the distance from peak to peak is called the wavelength. It is the physical distance between two similar points in the wave's cycle, such as two consecutive peaks or troughs.