The radius of a one solar mass black hole is 2950m. which distance below is smaller than the radius of a one solar mass black hole?

a. sun's radius (6.955x10^8m)

b. distance between the sun and mercury 5.8x10^10m

c. distance between the sun and venus (1.1x10^11m)

d. distance between the sun and the earth (1.5x10^11m)

e. none

Which of the following is true about fossils? a. the relative age of fossils cannot be determined from their position in sedimentary layers. b. fossils found in lower layers of sedimentary rock are as old as fossils found in upper layers of sedimentary rock. c. fossils found in upper layers of sedimentary rock are older than fossils found in lower layers of sedimentary rock. d. fossils found in lower layers of sedimentary rock are older than fossils found in upper layers of sedimentary rock.

Adeveloping nation's economy is based on a developed nation's economy is based on stay tuned- i may post some more questions from my study guide : )

Name the two rivers that run through the fertile crescent. how were the rivers both positive and negative to societies of the fertile crescent?