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- Question
Which one among the following stars is nearest to the earth?
Options- A. Sirius
- B. Arcturus
- C. Spica
- D. Proxima Centauri
- Correct Answer
- Proxima Centauri
ExplanationProxima Centauri is the nearest star, and on August 24, 2016 astronomers announced it likely has a planet. This star is the nearest of a triple star system, which we on Earth see with the eye alone as the single star Alpha Centauri, visible from Earth's Southern Hemisphere
- 1. The phenomena of raising the outer edge of the curved roads above the inner edge to provide necessary centripetal force to the vehicles to take a safe turn is called _____.
Options- A. banking of roads
- B. cornering of roads
- C. elevation of roads
- D. tempering of roads Discuss
- 2. Marble comes under which category of rocks?
Options- A. Sedimentary
- B. Igneous
- C. Metamorphic
- D. None of these Discuss
- 3. Very small insoluble particles in a liquid may be separated from it by using
Options- A. crystallization
- B. fractional distillation
- C. centrifugation
- D. decantation Discuss
- 4. Which one of the following is not related to wind erosion ?
Options- A. Wind gap
- B. Zeugen
- C. Dreikanter
- D. Demoiselle Discuss
- 5. Which one of the following statements is not correct?
Options- A. Position of the sun, Earth and Moon in a straight line of 180oangle is known as syzygy.
- B. Syzygy conjunction causes solar eclipse.
- C. Syzygy opposition causes lunar eclipse.
- D. Syzygy conjunction occurs at the time of perihelion only. Discuss
- 6. Which of the following planets of our solar system has least mass?
Options- A. Neptune
- B. Jupiter
- C. Mars
- D. Mercury Discuss
- 7. Which one of the following States of India is not covered by Food Forecasting Stations set up by the Central Water Commission?
Options- A. Rajasthan
- B. Jammu and Kashmir
- C. Tripura
- D. Himachal Pradesh Discuss
- 8. When hot water is placed into an empty water bottle, the bottle keeps its shape and does not soften. What type of plastic is the water bottle made from?
Options- A. Thermoplastic
- B. PVC
- C. Polyurethane
- D. Thermosetting Discuss
- 9. Green House Effect' means
Options- A. Pollution in houses in tropical region
- B. Prevention of ultraviolet radiation by the ozone layer
- C. Trapping of solar energy due to atmospheric gases
- D. Damage to green painted buildings Discuss
- 10. Statement I : By far the most common topographic form in a Karst terrain is the sinkhole. Statement II : Topographically, a sinkhole is a depression that varies in depth from less than a meter to few hundred meters.
Options- A. Both the statements are individually true and Statement II is the correct explanation of Statement I
- B. Both the statements are individually true but Statement II is not the correct explanation of Statement I
- C. Statement I is true but Statement II is false
- D. Statement I is false but Statement II is true Discuss
General Science problems
Search Results
Correct Answer: banking of roads
Correct Answer: Metamorphic
Correct Answer: centrifugation
Explanation:
Sometimes the solid particles in a liquid are very small and can pass through a filter paper. For such particles, the filtration technique cannot be used for separation. Such mixtures are separated by centrifugation.
Correct Answer: Wind gap
Explanation:
Demoiselles
These are rock pillars which stand as resistant rocks above soft rocks as a result of differential erosion of hard and soft rocks.
Zeugen
A table-shaped area of rock found in arid and semi-arid areas formed when more resistant rock is reduced at a slower rate than softer rocks around it.
A Dreikanter
It is a type of ventifact that typically forms in desert or periglacial environments due to the abrasive action of blowing sand.
A wind gap is a gap through which a waterway once flowed that is now dry as a result of stream capture.
Correct Answer: Syzygy conjunction occurs at the time of perihelion only.
Explanation:
In astronomy, a syzygy is a straight-line configuration of three or more celestial bodies in a gravitational system.Solar and lunar eclipses occur at times of syzygy, as do transits and occultations.
Correct Answer: Mercury
Explanation:
Correct Answer: Himachal Pradesh
Explanation:
Presently, there are 226 flood forecasting stations consisting of 166 level forecasting stations for villages and towns and 60 inflow forecasting stations for reservoirs/dams/barrages in the country. Existing flood forecasting network covers 22 States / Union Territories and 19 major river basins / sub-basins in the country.
Correct Answer: Thermosetting
Explanation:
Thermoset, or thermosetting, plastics are synthetic materials that strengthen during being heated, but cannot be successfully remouldedor reheated after their initial heat-forming. This contrasts withthermoplastics, which soften when heated and harden and strengthen after cooling. Thermoplastics can be heated, shaped and cooled as often as necessary without causing a chemical change, while thermosetting plastics will burn when heated after the initial moulding.
Correct Answer: Trapping of solar energy due to atmospheric gases
Correct Answer: Both the statements are individually true but Statement II is not the correct explanation of Statement I
Explanation:
A sinkhole (in Karst topography) is a hole in the ground that forms when water dissolves surface rock. Often, this surface rock is limestone, which is easily eroded, or worn away, by the movement of water.
Formation of a Sinkhole: In a landscape where limestone sits underneath the soil, water from rainfall collects in cracks in the stone. These cracks are called joints. Slowly, as the limestone dissolves and is carried away, the joints widen until the ground above them becomes unstable and collapses. The collapse often happens very suddenly and without very much warning. Water collects in these collapsed sections, forming sinkholes.
Sinkholes also form when the roofs of caves collapse. Sinkholes are often funnel-shaped, with the wide end open at the surface and the narrow end at the bottom of the pool.Sinkholes vary from shallow holes about 1 meter (3 feet) deep, to pits more than 50 meters (165 feet) deep.
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