Which describes a characteristic of a terminal moraine? a. it can cause sediment to be deposited in sandy ridges. b. it can create a group of teardrop-shaped hills. c. it can block the flow of meltwater from a glacier, causing the formation of a glacial lake. d. it can pluck pieces of rock out of a mountain to create a circular basin.

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?