Question
A boat running downstream covers a distance of 36 km in
6 hrs and covering the same distance upstream in 9 hrs. What is the speed of a boat in still water?Solution
Downstream speed = 36/6 = 6 km/hr Upstream speed = 36/9 = 4 km/hr So speed of boat in still water = (6 + 4)/2 = 5 km/hr
Which of the following microbes can be used as insecticide?
...Which one of the following is world’s largest Start Up ecosystem ?
_______is used as a Water Purifier.
The Tadoba-Andhari Tiger reserve is located in ____?
Which one of the following committee was constituted to review environmental laws in the country?
Which one amongst the following is not a Green House gas?
The process in which the branches of the tea bushes are cut off is
The Environment (Protection) Act of India was enacted in the year –
Which among the following ecosystems are likely to face the impact of global warming more than the others?
...
Cyclones Gulab was a tropical cyclone that caused considerable damage to ______ Asia.
