How does carbon dioxide in earth's atmosphere allow earth to support life? ?
fast plz i need it to my project

Mario performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. what could he have done to increase the validity of his data? reduce the number of plants. remove the 1 hour group. add a 0 hours control. measure the oxygen in liters

Depending on the organism the number of in a cell may change

What element does susan b. anthony include in this passage to strengthen her argument?