Biology, 26.09.2019 12:00, ayanajames0928
Which of the following best describes a way in which human activities affect the level of greenhouse gases in the atmosphere?
using aerosol sprays increases the amount of ozone (o3) in the atmosphere.
burning fossil fuels decreases the amount of water vapor (h2o) in the atmosphere.
deforestation increases the amount of carbon dioxide (co2) in the atmosphere.
using appliances that absorb radiation decreases the amount of chlorofluorocarbons (cfcs) in the atmosphere.
Answers: 2
Biology, 22.06.2019 03:00, elishaheart21
Which statement best describes the relationship between an allele and a gene? question 1 a. an allele is a variation of a gene that can be expressed as a phenotype. b. an allele is the part of a gene that attaches to messenger rna molecules. c. an allele is a segment of a dna molecule that controls replication of a gene.
Answers: 3
Biology, 22.06.2019 06:00, svaskeacevilles5477
When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?
Answers: 1
Biology, 22.06.2019 08:30, wrightstephanie193
Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes
Answers: 1
Which of the following best describes a way in which human activities affect the level of greenhouse...
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