Select the correct the answer
which process will decrease the level of co, in the atmosphere?
a
growing trees
cutting trees
c. burning trees
d. increasing the human population
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Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit