Explanation

• The poles experience six months of the day and six months of the night.
• This is since earth is tilted on its axis.
• Also, due to this, each pole is tilted towards and away from the sun for about six months.
• When the North Pole is tilted towards the sun, it has continuous daylight.

Last updated 08 Nov 2026 by NA

Explanation

Integrated Circuit (IC)

• - Definition: A small electronic circuit built on a single semiconductor chip.
• - Material: Usually silicon.
• - Components: Transistors, diodes, and resistors.
• - Purpose: Performs electronic functions in modern devices.
• - Uses: Computers, mobile phones, and calculators.

Last updated 06 Nov 2026 by NA

Explanation

Planets move around the Sun because of gravity.

- The Sun's gravitational force pulls planets toward it.

- Planets have forward motion (inertia).

- The balance between gravity and forward motion keeps them in orbit.

Last updated 06 Nov 2026 by NA

Explanation

• Manganese dioxide acts as a catalyst in the decomposition of hydrogen peroxide.
• It increases the reaction rate without being permanently consumed.
• Water and oxygen are produced.

Last verified on 07-11-2026

Explanation

• An electric fan uses electrical energy to rotate its blades, producing mechanical motion.
• This mechanical energy helps in circulating air to provide cooling.

Last verified on 07-11-2026