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Which of the following factors that the other planets in the solar system do not have contribute to the support of life on Earth? *

a. seasons
b. the year-long revolution around the sun
c. the presence of liquid water
d. the presence of a moon

Which of the following is an example of competition a. the leaves of a tree prevent a small shrub from getting sunlight. three species of birds feed a different heights in the same tree. b. three species of birds feed at different heights in the same tree c. zebra and giraffe’s feed on different grassland plants d. cats living in two different homes eat the same brand of cat food.