Why do so many of the people of india live in the ganges river valley? a. the river provides fertile soil for farming. b. they live along the ganges river to keep away from polluted industrial areas. c. the ganges river is the only source of fresh water in india d. for work and better opportunities for their families

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Often called simply "velocity," this is the velocity of an object at a particular moment in time.