It is a layer of soft cells containing chloroplasts?
a) epidermis
b) xylem
c) phloem
d) mesophyll
Which of the following has xylem and phloem tissues?
a) vascular bundle
b) chloroplast
c) epidermis
d) none of these
Which of the following is/are the necessary factors for photosynthesis?
a) temperature, water
b) light, CO2
c) chlorophyll
d) all of these
Which of the following is/are the necessary factors for photosynthesis?
a) temperature, water
b) light, CO2
c) chlorophyll
d) all of these
The level of CO2 in the air is about ……...
NTS PET -------2018
a) 0.01 to 0.02
b) 0.02 to 0.03
c) 0.03 to 0.04
d) 0.05 to 0.07
…………is the world are sometimes called the “lungs of the nature” they produce oxygen and decrease carbon dioxide in the air.
NTS PST 15/12/2019 (11:30)
a) Sun
b) Plants
c) Animals
d) air
