The common elements of all plants and living organisms are:
(select all the true)

A. Nitrogen
B. Hydrogen
C. Sodium
D. Carbon
E. Oxygen

Sydney drew a flow chart to illustrate the nitrogen cycle.which labels best complete the flow chart? x: producers undergo photosynthesis.y: nitrogen compounds are released into the air.x: nitrogen compounds are released into the air.y: producers undergo photosynthesis.x: free nitrogen is in the atmosphere.y: producers absorb nitrogen compounds through their roots.x: producers absorb nitrogen compounds through their roots.y: free nitrogen is in the atmosphere.

Which of the following is a common danger of commercial fishing?

What are the seven economic and social goals?