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- Question
Not including the sun, the closest stars to earth are
Options- A. 4300 light-years away
- B. 430 light-years away
- C. 43 light-years away
- D. 4.3 light-years away
- Correct Answer
- 4.3 light-years away
ExplanationThe nearest stars to Earth are in the Alpha Centauri triple-star system, about 4.37 light-years away. One of these stars, Proxima Centauri, is slightly closer, at 4.26 light-years.
Of all the stars closer than 15 light-years, only two are spectral type G, similar to our sun: Alpha Centauri A and Tau Ceti. The majority are M-type red dwarf stars.
Only nine of the stars in this area is bright enough to be seen by the naked human eye from Earth. These brightest stars include Alpha Centauri A and B, Sirius A, Epsilon Eridani, Procyon, 61 Cygni A and B, Epsilon Indi A and Tau Ceti.
- 1. Settled agriculture was first seen in China around
Options- A. 6000 BC
- B. 8000 BC
- C. 3000 BC
- D. 15000 BC Discuss
- 2. What do lines of latitude measure?
Options- A. east-west position between the poles
- B. north-south position between the poles
- C. north-east position between the poles
- D. south-west position between the poles Discuss
- 3. The longest ship canal in the world is the
Options- A. Suez canal, Egypt
- B. Kiel canal, Germany
- C. Panama canal, Central America
- D. St. Laurence Seaway (USA and Canada) Discuss
- 4. Suez Canal connects
Options- A. Red Sea and Arabian Sea
- B. Red Sea and Mediterranean Sea
- C. Arabian Sea and Mediterranean Sea
- D. North Sea and Baltic Sea Discuss
- 5. Which country is the largest producer of Rice?
Options- A. Brazil
- B. China
- C. United States
- D. India Discuss
- 6. How does the Sun get its energy
Options- A. From gravitational pressure
- B. From nuclear fission
- C. From nuclear fusion
- D. None of the above Discuss
- 7. ' Mohs scale ' is used to indicate the
Options- A. degree of brittleness of a substance
- B. degree of hardness of mineral
- C. degree of viscosity of a liquid
- D. degree of elasticity of a material Discuss
- 8. The most abundent metal in the Earth's crust is
Options- A. Calcium
- B. Aluminium
- C. Iron
- D. Magnesium Discuss
- 9. Epirogenetic movement give rise to
Options- A. Shields
- B. Plains
- C. Volcano
- D. Fold mountains Discuss
- 10. Geostationary orbit is at a height of
Options- A. 6 km
- B. 1000 km
- C. 3600 km
- D. 36,000km Discuss
World Geography problems
Search Results
Correct Answer: 6000 BC
Explanation:
Settled agriculture was first seen in China around 6000 BC. The crops grown at this time were rice and millet.
Beginning in about 618 BC with classical millet agriculture, China's development of farming over the course of its history has played a key role in supporting the growth of what is now the largest population in the world.
Correct Answer: north-south position between the poles
Explanation:
Lines of latitude measure north-south position between the poles.
Lines of latitude are imaginary reference lines that describe how far north or south a location on the Earth is from the Equator. The equator is defined as 0 degrees, the North Pole is 90 degrees north, and the South Pole is 90 degrees south. Lines of latitude are all parallel to each other, thus they are often referred to as parallels.
Correct Answer: St. Laurence Seaway (USA and Canada)
Correct Answer: Red Sea and Mediterranean Sea
Correct Answer: China
Correct Answer: From nuclear fusion
Correct Answer: degree of hardness of mineral
Correct Answer: Aluminium
Correct Answer: Fold mountains
Correct Answer: 36,000km
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