Ocorrectly classify a rock as igneous, sedimentary, or metamorphic, what would a geologist need to know?

a.
color of the rock

b.
the hardness of the rock

c.
how the rock formed

d.
how the rock breaks apart

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

Study this image which statement best describes the rock shown check all that apply

Which direction does the energy flow in this energy pyramid ?