A. Alpine vegetation
B. Tundra vegetation
C. Conferous vegetation
D. None of the above
Agronomy
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
The plants which, grow neither in dry nor in wet condition are…………………..?
A. Xerophytes
B. Amphibiophytes
C. Mesophytes
D. Hydrophytes
Plants adopted to arid regions are……………….?
A. Mesophytes
B. Hydrophytes
C. Xerophytes
D. Aridic plants
Mutual association between fungi and roots of plants is known as……………..?
A. Rhizospher
B. Mycorrhizae
C. Root fungi
D. None of the above
Zinc deficiency is generally observed in……………..?
A. Wheat
B. Vegetables
C. Race
D. Cotton
Fertilizer application before seed sowing is called………………?
A. Top dressing
B. Broadcasting
C. Basal application
D. Drilling
Sowing seed without any tillage in the soil is called………………?
A. Minimum tillage
B. Zero tillage
C. Secondary tillage
D. None of the above
The CO, content of air is……………….?
A. 1%
B. 10.3%
C. 0.03%
D. 0.002%
Azolla which fixes nitrogen in rice field is………………?
A. Bacteria
B. Fungi
C. Ferm
D. None of the above