Generally speaking, only level to nearly level (0-2 % slope) & gently sloping lands (2-5 % slope) should be: A. brought under range crops B. Forests C. Both a & bD. None of the above
calcium is immobile in plants. Therefore, under conditions of deficiency, young tissue is affected first. calcium deficiency symptoms are: A. Death of terminal buds; roots tips also affected B. Abnormal dark green appearance of foliage C. Premature shedding of blossoms…
Potassium plays a significant role in the transport of water & nutrients through the plant in the xylem. When the supply of K is reduced, the transportation of ___________________ is depressed: A. Nitrates, Phosphates B. Calcium, magnesium C. Amino acidsD.…
The solid wastes generated in Pakistan are about: ___________? A. 47,920 tonnes/day B. 65, 772 tonnes/day C. 12250 tonnes/day D. All of the above
Almost one third of the land area through out the world is affected by land degradation. Pakistan’s agriculture sector though facilitates employment to >65% but is facing challenges from: A. Erosion B. Salinity C. WaterloggingD. All of the above
Term forest is derived from: ___________? A. English word B. French wordC. Latin word D. None of the above
Vegetation found in saline soils is termed by _________? A. Halophyte B. Hetrophyics C. Viticphyics D. Hortiphyics
Plants which grow on sandy soils:_________? A. Chasmophytes B. LithophytesC. Psammophytes D. None of these
The highest Cation Exchange Capacity is in:_________? A. Sandy SoilB. Clay soil C. Gravely soil D. Both A & C
Fossils are found in which type of rock: A. Sedimentary rock B. Metamorphic rock C. Stratified rockD. Both A & C