781. A pulsar is a rapidly spinning neutron star which emits:
✅ A. Radio waves detectable from Earth
Everyday Science MCQs – Page 40
782. The biggest planet in our solar system is______?
✅ C. Jupiter
783. One of these scientists formulated basic laws of Geometry?
✅ B. Pythagorus
784. In 2013, Planck measured the age of the universe at ______?
✅ B. 13.82 billion years
785. The three elements needed for healthy growth of plants are _____?
✅ B. N, P, K
786. Cobalt is a material which is ?
✅ B. Strongly attracted by a magnet
787. Which gas is used to extinguish fire?
✅ C. Carbon Dioxide
788. Which of the following science is considered “mother of all sciences”?
✅ A. Mathematics
789. In humans , most nutrient molecules are absorbed by the ?
✅ B. Small intestine
790. Medulla oblongata is a part of human ______?
✅ A. Brain
791. The atmospheric greenhouse effect is produced mainly by the ________?
✅ C. Absorption and re-emission of infrared radiation by the atmosphere
792. Pig iron is also called___?
✅ B. Cast iron
793. Chronometer is invented by___?
✅ D. John Harrison
794. Red blood cells are produced in____?
✅ D. Bone-marrow
795. Chemical formula for Water is __ ?
✅ A. H2O
796. Which of the following pollutants in water causes “Minamata disease?
✅ B. Methyl Mercury
797. Bats can also fly in dark because they are capable of taking the help of ____?
✅ A. Ultrasonic Waves
798. According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in____?
✅ D. 10 hours
799. Monsoon is caused by__________?
✅ B. Seasonal reversal of winds
800. The cracking sound heard when dry hair is combed with a hard rubber comb is due to____?
✅ A. Small electric sparks