Which of the following crop is a source methane and nitrous oxide emission into the atmosphere?
Rice or paddy fields are considered one of the most important sources of methane and nitrous oxide emissions, which contribute considerably to global warming.
A train travelling with a speed of 90 km/h can cross a pole in 8 seconds. Find the time taken by the train to cross a 220 metres long platform if the sp...
A train started from station P and preceded towards station Q at a speed of 64 km/h. 45 minutes later, another train started from station Q and preceded...
Train ‘A’ running with a speed of 108 km/hr crosses a vertical pole in 10 seconds. Find the approx. time taken by the train ‘A’ ...
Two trains of same length are running in parallel tracks in the same direction with speed 64 km/hr and 100 km/hr respectively. The latter completely cro...
1320 metres long train crosses a man who is moving in the same direction with a certain speed in 20 seconds. If the same train can cross a pole in 15 se...
A 160 m long train crosses another 290 m long train running in the opposite direction in 10 seconds. If the shorter train crosses a pole in 8 seconds, w...
A train 450 m long running at 72 km/hr takes 45 seconds to cross a bridge The length of the bridge is
Train X, traveling at a speed of 36 km/hr, crosses another train Y, which is moving in the opposite direction at a speed of 72 km/hr, in 't' seconds. If...
The speed of a Vande Bharat train is 72 km/h, and it takes 16 seconds to cross a tree. Determine the time taken by the train to cross a platform when th...
Train 'Express Star' is moving at a speed of 90 km/hr, traveling towards train 'Speedy Voyager,' which is twice as long as 'Express Star' and has the sa...