General Science
General Science for UPSC involves understanding how basic physics, chemistry, and biology apply to our daily lives. It focuses heavily on modern technology, space research, and environmental protection. For instance, space science studies objects far beyond Earth's atmosphere. A Nebula is a giant cloud of dust and gas where new stars are born. Pulsars are highly magnetized, rotating neutron stars that emit beams of radiation. Cepheids are stars that change their brightness at regular intervals.
Concepts (3)
Biopesticides are pest control agents made from natural materials like canola oil or dried bacteria. Unlike chemical pesticides, they are usually less toxic and decompose quickly. They are essential for organic farming and protecting the environment.
Biopesticides are pest control agents made from natural materials like canola oil or dried bacteria. Unlike chemical pesticides, they are usually less toxic and decompose quickly. They are essential for organic farming and protecting the environment. They target specific pests without harming birds or beneficial insects. Example: Using the 'Neem' plant extract to keep insects away from crops is a form of biopesticide use.
Solar flares are sudden blasts of radiation from the Sun. They can reach Earth and interfere with the ionosphere, which is a layer of our atmosphere. This interference causes errors in GPS and disturbs shortwave radio used by aircraft.
Solar flares are sudden blasts of radiation from the Sun. They can reach Earth and interfere with the ionosphere, which is a layer of our atmosphere. This interference causes errors in GPS and disturbs shortwave radio used by aircraft. They also cause beautiful lights called Auroras near the poles. Example: A major solar flare can cause a city-wide power outage by damaging electrical transformers.
Satellite navigation systems provide location data. Global systems like GPS (USA) and GLONASS (Russia) cover the entire world. Regional systems cover specific areas. India's NavIC covers the Indian mainland and 1500 km around it.
Satellite navigation systems provide location data. Global systems like GPS (USA) and GLONASS (Russia) cover the entire world. Regional systems cover specific areas. India's NavIC covers the Indian mainland and 1500 km around it. These systems work by measuring the time it takes for a signal to travel from a satellite to a receiver. Example: Using Google Maps to find a route depends on these satellite signals.
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