Which of the following have applications in cosmetic and pharmaceutical industries?
a) chitosan
b) crab shell
c) both a & b
d) weathering
The process in which material left on land after the crop has been harvested called…
a) crop residues
b) enzymes
c) proteins
d) crab shell
Factors Effecting Agricultural Yields
(زراعت کی پیداوار کو متاثر کرنے والے عوامل):
How many factors that effectagricultural yield?
a) 1
b) 2
c) 3
d) 4
Explanation:soil fertility, availability of water, climate, diseases or pests.
Which of the following factors have the direct impact on agricultural yield?
a) availability of water
b) climate
c) diseases
d) none of these
Compare and Contrast Different Methods of Farming
(کاشتکاری کے مختلف طریقوں کا موازنہ):
