541. Glass is made of the mixture of____?
✅ C. Sand and Silicates
Author: Aurangzeb – Page 28
542. Reflex actions in head region are under the control of______?
✅ B. Brain
543. The sun appears red at sunrise and sunset while it appears white at noon, because
✅ D. Of Scattering of light due to dust particles and air molecules.
544. Medium which sends signal from source to destination is known as ___ ?
✅ A. Transmission channel
545. Pressure is measured by____?
✅ B. barometer
546. The first cloned animal was_______?
✅ D. Sheep
547. Places where the temperature of air is above freezing point of the water, the precipitation will be in the form of ___ ?
✅ C. Rain
548. The protons and neutrons are found in the center of the atom, which is called the ____of the atom?
✅ B. Nucleus
549. Which of the following cutting conditions greatly affects the tool wear?
✅ B. Cutting speed
550. A common skin condition that causes skin redness and irritation is known as____?
✅ B. Psoriasis