In organic compounds, which of the following elements normally forms two covalent bonds?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
D
You might also like to view...
Krummholz can be useful to physical geographers trying to understand the environment because
A) they indicate that there is a soil water deficit where they exist. B) their branches reveal the prevailing wind direction. C) they are a useful indication that the biome is a temperate forest. D) they are almost always found atop sandstone-based parent material.
Clouds help regulate Earth’s energy balance by reflecting and scattering solar radiation and by absorbing Earth’s infrared energy
a. True b. False
In a standard rain gauge ____ inches of water in the tube would be measured as 1 inch of rainfall.?
a. ?2.5 b. ?5 c. ?7.5 d. ?10 e. ?12.5
One of the natural influences on the concentrations of atmospheric ozone is ________
What will be an ideal response?