The CO, content of air is___________________?
The CO, content of air is___________________?
A. 1%
B. 10.3%
C. 0.03%
D. 0.002%
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Penetrometer are used for measuring__________________?
Penetrometer are used for measuring__________________?A. Soil tilth depth
B. Soil moisture
C. Soil compaction
D. Soil seepageGreen vegetables are the source of___________________?
Green vegetables are the source of___________________?A. Biotin
B. Carbohydrates
C. Folate
D. VitaminCausal organism of root rot of cotton is_____________________?
Causal organism of root rot of cotton is_____________________?A. Rhizoeionia solani
B. Rhizoctonia bataticola
C. Both of themA condition of green plants in which they become unhealthy and pale fellow in colour is known as_________________?
A condition of green plants in which they become unhealthy and pale fellow in colour is known as_________________?A. Chromoplast
B. Leucoplast
C. Chlorosis
D. ChromoplastThe heating of atmosphere by gases that are transparent to sun light but opaque to radiated heat is called________________?
The heating of atmosphere by gases that are transparent to sun light but opaque to radiated heat is called________________?A. Green house effect
B. Pollution
C. Warming
D. Solar radiationRoot nodules in plants help in___________________?
Root nodules in plants help in___________________?A. Photosynthesis
B. aeration
C. Nitrogen fixation
D. Respiration