Question
Which of the following gas usually causes explosions in
coal-mines?Solution
Methane explosions occur in coal-mines when a buildup of methane gas, a by-product of coal, comes into contact with a heat source, and there is not enough air to dilute the gas to levels below its explosion point.
Which of the following plants has seeds lacking endosperm as a result of double fertilization?
Yellow leaf mosaic of blend crops is transmitted by:
Which element is maximum in black soll:
Jute prefer to grow in
When male and female flowers are present on separate branches of same plant, this situation is known as _____
Which of the following types of pesticide formulation is mainly used in storage structures/seed godowns?
Most damaging single influence on storage life of seeds is:
The production process of coffee beans from the farm to the factories for processing through different roasting grades and finally to the coffee consume...
A farming region where farmers focus solely on the cultivation and marketing of vegetables is referred to as:
Which growth stage of maize is most sensitive to water stress, where even short periods of drought can cause significant yield loss?
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