The angles of elevation of the top of a temple, from the foot and the top of a building 30 m high, are 60° and 30° respectively. Then height of the temple
1). 50 m
2). 43 m
3). 40 m
4). 45 m
2. Ethylene is a ______ molecule.
3. Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?
4. Three crops that contribute maximum to global food grain production are _________
6. Ghumura is a folk dance of _______.
7. If $\frac{sinA}{(1 + cosA)} = x$, then x is
8. Which number will complete the series?6 , 8 , 17 , 19 , 28 , 30 , ?