JEST PST TEST MATERIAL I SCIENCE CLASS 6 CHAPTER 3 I PST JEST HST PAST PAPER I PST TEST DATE 2021

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in this video i have uploaded pst jest test material for pst jest jobs in sindh 2021.
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in this video i have lectured for pst past paper
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topics covered in this video are:

photosynthesis and respiration
internal structure of plant leaf
internal structure of leaf
benefits of photosynthesis
factors necessary for photosynthesis
respiration in plants.
difference between photosynthesis and respiration
chemical reaction
glucose
sunlight
chlorophyl