The transfer of information across the synapse is accomplished by the release of a chemical substance called a into the synapse. These chemicals travel across the synapse and are involved in the transmission of neural impulses (they stimulate the dendrites of the next neuron). They bind with the receiving neuron in a lock

The correct answer is option C

Photosynthesis is the process by which green plants make their own food by the help of carbon dioxide, sunlight and chlorophyll. The green plants produce oxygen in the air and utilize the carbon dioxide present there. If there will be no photosynthesis on the earth then there will be increased amount of carbon dioxide on earth.