981. Plants adopted to arid regions are___________________?

A. Mesophytes
B. Hydrophytes
C. Xerophytes
D. Aridic plants

982. The plants which, grow neither in dry nor in wet condition are_______________________?

A. Xerophytes
B. Amphibiophytes
C. Mesophytes
D. Hydrophytes

983. The soil are contains__________________?

A. Less oxygen as compared 10 atmosphere
B. More carbon dioxide as compared to atmosphere
C. Both a & b
D. None of the above

984. The vegetation found on high altitude mountain is__________________?

A. Alpine vegetation
B. Tundra vegetation
C. Conferous vegetation
D. None of the above

985. A nutrient element is said to be essential if___________________?

A. Plants can not complete their life cycle in absence of that element
B. Nutrients has some physiological function in metabolism of plant
C. Deficiency symptoms can be removed by application of that putrid
D. All the above

986. Organic farming, is a copping system in which__________________?

A. Fertilizers and pesticides are widely used
B. Fertilizers and pesticides are net used
C. Farm yard manure r not used
D. Green manuring

987. Which one of the following is a major fiber crop of Pakistan ?

A. Sugarcane
B. Cotton
C. Sesame
D. Jute

988. The Cotton plant belong to family ?

A. Gramineae
B. Fabaceae
C. Malvaceae
D. Leguminaceae

989. Gassypium hirsutum is________________?

A. Tetraploid
B. Diploid
C. Triploid
D. Hexaploid

990. Genus of cotton is___________________?

A. Hirsutum
B. Triticum
C. Gassypium
D. Hordeunt