Green vegetables are the source of ____?
A. Biotin
B. Carbohydrates
C. Folate
D. Vitamin
Solar energy emitted by sun reaches the earth surface absorbed and returned back in the form of ______?
A. Infra blue radiation
B. Infra red radiation
C. X rays
D. None of the above
Plants grown in dry region are _____?
A. Xerophytes
B. Thermophyts
C. Mesophytes
D. Halophytes
The ratio of actual cultivated’ area to a total farm area over the year is called ____?
A. Cropping pattern
B. Cropping intensity
C. Cost benefit ratio
D. Cropping system
Accumulation of transported material A to B horizon is known as _____?
A. Eluviation
B. llluviation
C. Alluviation
D. Deposition
Removal of cellular water followed by shrinkage of protoplasm is due to
A. Oxidation
B. Deplasmolysis
C. Osmosis
D. Plasmolysis
Geographical area of Pakistan in million hectare is _____?
A. 60
B. 80
C. 95
D. none of the above
The equipment used for separating, cleaning and grading small seeds from given sample is _____?
A. Seed blower
B. Seed sorter
C. Seed divider
D. a and b
The enzyme responsible for biological nitrogen fixation is _____?
A. Lipase
B. Nitrogenase
C. Isomerase
D. Kinease
The major source of foreign exchange earning is ____?
A. Wheat
B. Sugarcane
C. Cotton
D. Jute
