Consider the cement used for the foundation; the bricks and timber used for the walls; and the shingles used for the roof. all of these are in making the house.

a. elements
b. needs
c. resources

Light travels at a speed of 186,000 miles a second. the distance light travels in a year is 5,865,690,000,000 miles/year 5,865,695,000,000 miles/year 58,656,950,000,000 miles/year 6,789,000,0000 miles/year