The nitrogen utilized by most plants is derived from
a. soil.
b. decayed organic matter.
c. the atmosphere.
d. nitrogen gas.

Need will mark ! which features are created by groundwater erosion and deposition? check all that apply. a. stalagmitesb. sinkholesc. rillsd. stalactites e. gullies f. rivers

Identify the missing parts of the carbon cycle

Consider the skeleton. which skeletal system is represented by the shaded portion of the skeleton? spongy skeleton compact skeleton axial skeleton appendicular skeleton