Computers -heat resistant materials -breathing systems for fire fighter -food growing technologies improvements in all of the items in this list were first made possible by a) space exploration b) internet providers c) religion institution d) automobile manufacturers

Improvements in all of these areas were made possible as a result of space exploration. The space program has done much more than allow humans to go to the moon or orbit the earth. The computers that allowed the space flights to take place were later adapted to allow people to use them personally. The materials used to protect the spacecraft from extreme heat AND cold have been adapted for use on earth. Also, the machines that are used to provide astronauts with air have been modified to allow fire fighters to breathe more easily when in an emergency.

answer: d. geography : )

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering