Question 26 of 35 Corundum is the second-hardest mineral on Mohs' hardness scale. How does
this property make corundum useful to humans?
A. It means corundum can be used to make fireworks yellow.
B. It means corundum can be used to flavor foods.
C. It means corundum can be used as pencil lead.
D. It means corundum can be used to grind down and shape
fingernails.

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Both destructive and constructive, the natural event seen here, is important in destroying and creating landforms on earth. what is this event called? a) deposition b) flooding c) landslide d) sedimentation