The gametophyte is not an independent,free-living generation in

The area of the triangle formed by the lines ${y^2} - 9xy + 18{x^2} = 0$ and $y = 9$ is

There are two holes,one each along the opposite sides of a wide rectangular tank. The cross-section of each hole is $0.01 ~m^2$ and the vertical distance between the holes is $1 ~m$. The tank is filled with water. The net force on the tank in newtons when the water flows out of the holes is (Density of water $= 1000 ~kg/m^3$,$g = 10 ~m/s^2$):

Which of the following are considered petroleum plants?

During which of the following reactions will a gaseous product $NOT$ be produced?

The product$(s)$ formed when $H_2O_2$ reacts with disodium hydrogen phosphate is