How are the products represented in the chemical equation for photosynthesis? a) o2 + 6co2 b) c6h12o6 + 6h2o c) 6co2 + 6h2o d) c6h12o6 + 6o2

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels

Is there any solid scientific evidence that humans have been cloned?

Which kind of mutation has occurred when the codon for an amino acid is changed to a stop codon? a. a silent mutation b. a missense mutation c. a frameshift mutation d. a nonsense mutation