The radius of the sun is about 700,000,000 meters, the radius of the planet venus is about 6,000,000 meters, and the radius of the supergiant star betelheuse is about 500,000,000,000 meters. which of these statements is true (t) or false (f)? a. the radius of the sun is about 7 x 10^7 meters, and the radius of venus is about 6 x 10^6 meters .b. the radius of the sun is about 7 x 10^8 meters, and the radius of betelgeuse is about 5 x 10^11 meters. c. the radius of venus is about 6 x 10^6 meters, and the radius of the sun is about 7 x 10^8 meters. d. the radius of venus is about 6 x 10^7 meters, and the radius of betelgeuse is about 5 x 10^11 meters. e. the radius of betelgeuse is about 5 x 10^10 meters, and the radius of the sun is about 7 x 10^8 meters. f. the radius of betelgeuse is about 5 x 10^11 meters, and the radius of venus is about 6 x 10^8 meters.

a- false

b- true

c- true

d- false

e- false

f- false

Explanation:

from the question

radius of the sun = 700,000,000

radius of Venus = 6,000,000

radius of Betelheuse = 500,0000,000,000

a) this says the radius of the sun 7 x 10^7 = 70,000,000 (having seven zeros) and this is not equal to what we were initially given in our question hence its false

b)  this says the radius of the sun is 7 x 10^8 = 700,000,000 (having seven zeros) while radius of Betelheuse is 5 x 10^11 = 500,0000,000,000 (having eleven zeros) which is the same as the value we were given in the question.

c)   this says the radius of Venus is 6 x 10^6 = 6,000,000 (having seven zeros) while radius of the sun is 7 x 10^8 = 700,000,000 (having eleven zeros) which is the same as the value we were given in the question.

d) this says the radius of Venus is 6 x 10^7 = 60,000,000 (having seven zeros) while radius of Betelheuse is 5 x 10^11 = 500,0000,000,000 (having eleven zeros) which is not the same as the value we were given in the question.

this applies for (e) and (f) also

it is true because as we rotate around the way we rotate makes day come and because the moon is rotating around the earth that's what makes it night come. hope this .

bacteria that live on the ocean floor are sustained by phytoplankton. phytoplankton, microscopic marine photosynthetic organisms, have a vastly significant role to play not only in the marine food web of which they’re part of, but also on a more global scale. despite their infinitely small size in comparison to other marine organisms, these tiny creatures occupy an immensely important ecological niche: they are the foundation of the marine food web, and as primary producers, play key roles in supporting all other organisms in the marine environment, as well as in the regulation of the earth’s climate through the sequestration of carbon, oxygen production, and other related processes. phytoplankton account for roughly half of all global primary productivity; therefore, their significance extends far beyond the marine environment alone. there is an intriguing sense of irony in the realization that these tiny living beings that often live out their existence unnoticed and undetected by the rest of the world, have such a far-reaching impact on the lives of virtually all other living organisms on the planet, particularly on those in the marine environment. the world that we have become accustomed to has been and is continuously shaped by the workings of these miniscule yet vital “plants of the sea”.

hope this !