The solar energy is a : 1) Conventional energy source 2) Non Conventional energy source 3) Non renewable energy source 4) Exhaustible energy source

Bats use ________ to navigate and find food. 1) Resonance 2) Magneto – Reception 3) Electroreception 4) Echolocation

Nucleic Acid present in Corona Virus is : 1) Deoxyribonucleic acid 2) Oxyribonucleic acid 3) Ribonucleic acid 4) Chromatin

Electrical energy is converted in to mechanical energy in : 1) Dynamo 2) Microphone 3) Electric motor 4) Heater

Television signals are : 1) Frequency modulated 2) Amplitude modulated 3) Both frequency and amplitude modulated 4) Phase modulated

One light year is : 1) The distance traveled by light in free space in one year 2) The light emitted by sun in one year 3) The time taken by ...

Bleeding from nose is caused when a person is there at : 1) Higher altitudes where atmospheric pressure is low 2) Lower altitudes where atmospheric pressure is high 3) Normal altitudes ...

The main component of Biologas is : 1) Butane 2) Ethylene 3) Methane 4) Propane

Bee sting causes severe pain and burning sensation due to the presence of : 1) Acetic acid 2) Sulfuric acid 3) Citric acid 4) Methanoic acid