What is a light-year? A. The diştance between two stars
B. The distance light travels in one year
C. The time it takes light to travel 300,000,000 meters
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D. The time it takes light to travel to Earth from the sun

What did the first language sound like

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.

How far away is the nearest black hole from earth?