In order to determine whether replacing fossil fuels with hydrogen would be good for the environment, what question must be answered? A. How much hydrogen is there on Earth? B. How long will the fossil fuels on Earth last? C. Where would the energy to produce the hydrogen come from? D. What effect does water have on the environment?

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

b. to discover aspects of the natural world.

hopefully i .

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602

ice cream

explanation: