Answer:
stem cells
Explanation:
Stem cells differ from other kinds of cells in the body. All stem cells—regardless of their source—have three general properties: they are capable of dividing and renewing themselves for long periods; they are unspecialized; and they can give rise to specialized cell types.
Answer:
walk or bike reduces CO2
using computers helps save forests
treating sewage water conserves freshwater aquifers
Explanation:
walking reduces CO2 by not using a car train or bus that puts out CO2
computers for note taking saves forests by reducing the amount of paper we use, therefore cutting down less trees to make the paper
treating sewage water and reusing it in factories conserves freshwater aquifers because we're recycling used water rather than continuing to use more and more freshwater.
Answer:
let me take the test i will tell you after
Explanation:

C. The crystals are larger than those formed closer to Earth’s surface.

If the magma cools quickly, the crystals do not have much time to form, so they are very small. If the magma cools slowly, then the crystals have enough time to grow and become large. Some granites contain minerals which are up to one meter (3 ft) across!