Question

Q.1
Explain double circulation in human beings.
Q.2
Define photosyhthesis. Describe the various steps involved in it. Support you answer with a suitable
reaction​

Answer 1

Answer:

in double circulation blood enters heart two time from all the organs (deoxygenated blood) and from the lungs (oxygenated blood)

photosynthesis is a process of food making in autotroughs in presence of sunlight, chlorophyll , co2.

6co2+6co2===============>c6h12o6+6o2

in presence of sunlight

and chlorophyll

hope u understand