A pedigree chart can help trace in a family to determine whether people carry recessive alleles. A. phenotype
B. genotype
C. genotype and phenotype

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

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