Carbon dioxide is used by plants.

True
False

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.

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

The body is protected against harmful flu viruses by