Submarines move under water. They have engines that run on -

Related MCQs

• The fuel that is used in modern submarines is –
• Heavy metals got their name because compared to other atoms they have -
• Conduction band electrons have more mobility than holes because they –
• Water can be separated from alcohol water mixture by –
• Hard water and soft water can be distinguished by using –
• Surface water is a better source of drinking water because it is poor in -
• Sea water is saltier than rain water because –
• Magnets attract magnetic substances are iron, nickel, cobalt, etc. They can also repel -
• Silver halides are used in photographic plates because they are -
• When cathode rays strike a target of high atomic weight, they give rise to –