Which of the following is a Mineral Acid?

Fruits such as oranges , lemon etc, contain ........................... Acid

___________ is any waste that is a risk to the health of humans or other living things.

A ____________ is a waste disposal facility where wastes are put in the ground and covered each day with a layer of dirt, plastic, or both.

Solid waste includes all of the following except;

A fuse wire is a wire of-

When current is switched 'on' of a bulb it converts _______ energy into _______ energy.

When current is switched on in an electric bell, it converts _______ energy into _______ energy.

The most appropriate unit for expressing the speed of a space rocket is:

The instrument installed in a car for measuring the distance travelled by the car is called:

The main source of energy comes from the _______________.

Vertical columns on the periodic table are called ___?

Which color on the image of the periodic table corresponds with the transition metals.