A by-product of photosynthesis is
A) nitrogen.
B) argon.
C) oxygen.
D) xenon.
C
You might also like to view...
Deforestation does all of the following, except
A) increase evapotranspiration. B) increase temperatures near the surface. C) decrease precipitation. D) increase atmospheric carbon dioxide.
The Apollo astronauts brought ________ rocks back to the Earth.
A. comet B. asteroid C. Mars D. Venus E. moon
Which of the following best represents primary recycling?
A) Collecting old clothing, cleaning it, and using the clothing to stuff new toy dolls B) Collecting newspapers and reusing them to make more newspaper C) Shredding plastic water bottles to make lawn furniture D) Recycling plastic garbage bags to make decking and railing materials
The world's largest state is
A) China. B) Canada. C) Russia. D) Alaska. E) India.