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Start learning 50% faster. Sign in nowLet the length and speed of the train ‘A’ be ‘l’ metre and ‘s’ m/s, respectively. According to question, l = 10s Also, 12s = 10s + 140 Or, 2s = 140 Or, s = 70 Therefore, length of train ‘A’ = 10s = 700 metres Length of train ‘B’ = 140 × (5/2) = 1750 metres Required time taken = 1750 ÷ 20 = 87.5 second
The study of relationship of animals with their environment is called-
The process in which the branches of the tea bushes are cut off is
Which country has highest air pollution among all European Union (EU) countries?
...STRIVE is a new World Bank funded project under min of skill development. What does V stands for ?
_______is used as a Water Purifier.
Which of the following is/are considered as Autotrophs?
1. Green plants
2. Blue green Algae
3. Human beings
4. Cattle
Which one of the following is an element of weather?
Cyclones Gulab was a tropical cyclone that caused considerable damage to ______ Asia.
Which of the following gases is/are associated with acid rain?
1. Sulphur Dioxide and Nitrogen Oxides
2. Carbon Monoxide
3. Met...
Which among the following ecosystems are likely to face the impact of global warming more than the others?