Which of the following best describes the cycle of matter between humans and the environment? Humans exhale carbon dioxide, which plants use in cellular respiration.
Humans inhale oxygen from plants, which is used in cellular respiration to produce water.
Humans inhale oxygen from plants, which is used in photosynthesis to produce carbon dioxide.
Humans exhale carbon dioxide, which plants use in photosynthesis to produce more carbon dioxide.

Agenetically engineered corn plant is approved for agricultural use. the plant produces pollen that can make its own toxins. these toxins protect the corn plant against pests and no longer require the application of chemical pesticide. what is a likely impact on the farmer of growing such a variety of corn? a- the financial costs for the farmer would be lowered since less crops would be lost to pests. b-the financial costs for the farmer would be lowered since more crops would be lost to pests. c-the farmer may be held responsible for increasing chemical pollution. d-the farmer's expenses for pest control would increase due to an increase in bee population.