A. Air
B. Water
C. So
D. All the above
Related Mcqs:
- The process of converting food nutrients to carbohydrates in plants is called________________?
A. Metabolism
B. Photosynthesis
C. Absorption
D. Assimilation - In wheat total crop P uptake per ton of gram is about;__________________?
A. 5-20 Kg
B. 2-3Kg
C. 5-7 Kg
D. 20-25 Kg - In wheat total crop N uptake per ton of grain is about__________________?
A. 50-60 Kg
B. 20-30 Kg
C. 15-20 Kg
D. 70-80 Kg - The application of fertilizer nutrients in proportions best suited to the needs of the crop is called_________________?
A. fertilizer placement
B. fertilizer use efficiency
C. Nitrogen use efficiency
D. Balanced fertilization - Plants which grow on dry region are____________________?
A. Xerophytes
B. Thermophytes
C. Hydrophytes
D. Haplophytes - Mutual association between fungi and roots of plants is known as_________________?
A. Rhizospher
B. Mycorrhizae
C. Root fungi
D. None of the above - Plants adopted to arid regions are___________________?
A. Mesophytes
B. Hydrophytes
C. Xerophytes
D. Aridic plants - The leguminous plants are important in agriculture because_________________?
A. They need very little water to grow
B. Six crops are harvested in a year
C. They are disease resistant
D. Help in nitrogen economy of nature - Allelopathy interaction between plants playa crucial role in___________________?
A. Ecosystems
B. Community
C. Both a and b
D. non of there - Mg in plants act as___________________?
A. Protein activator
B. Enzyme activator
C. Starch activator
D. None of the above
