Question
A boat running downstream covers a distance of 30 km in
2 hrs and covering the same distance upstream in 10 hrs. What is the speed of a boat in still water?Solution
Downstream speed = 30/2 = 15 km/hr Upstream speed = 30/10 = 3 km/hr So speed of boat in still water = (15 + 3)/2 = 9 km/hr
Match the following: -
The study of soil from the stand point of higher plants is known as ……………………….
Which of the following crop is not correctly matched with its family?Â
The branch of biology which deals with the study of heredity and variation is known as
Which of the following crop species follows the Hatch–Slack pathway?
Machine that improves the efficiency of a cleaner cum grader by removing smaller and larger size impurities from the grain?
Which of the following features is most typical of horticultural crops compared to field crops?
The only known nickel containing enzyme
Which soil property is typically measured using a pressure plate apparatus in order to determine the soil’s moisture retention at permanent wilting po...
Yellow revolution represents the production of ........................?
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