Breeding crops with higher levels of vitamins,minerals,and proteins is known as ..........

Heat energy is incident on the surface at the rate of $1000 ~J/min$. If the coefficient of absorption is $0.8$ and the coefficient of reflection is $0.1$,then the heat energy transmitted by the surface in $5$ minutes is: (in $~J$)

Which of the following has the smallest size?

The general formula of a cycloalkane is

The point of contact of the circles $x^2+y^2+2x+2y+1=0$ and $x^2+y^2-2x+2y+1=0$ is

In carbon monoxide $(CO)$,how are the carbon and oxygen atoms bonded?