The development of refrigeration technology and frozen-food technology met the need of allowing food to be stored longer. Explain two ways in which refrigeration helped people.
Identify at least two products that were developed because of frozen-food technology.

Gravity is pulling an object into the sun. the closer the object gets to the sun, the greater the gravitational force that acts on the object, increasing its acceleration. a line graph plotting the speed of the object against time would have which shape? a: straight line of positive slope b: curved line that slopes upward c: curved line that slopes downward d: straight line of negative slope