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- Question
What invisible force holds you onto the earth, so that you don't simply fall off?
Options- A. gravity
- B. magnetism
- C. wind
- D. speed
- Correct Answer
- gravity
- 1. Heavy water is
Options- A. PH7
- B. rain water
- C. deuterium oxide
- D. tritium oxide Discuss
- 2. Metal extracted from seawater
Options- A. Potassium
- B. Calcium
- C. Magnesium
- D. Sodium Discuss
- 3. The blue colour of the clear sky is due to
Options- A. Diffraction of light
- B. Dispersion of light
- C. Reflection of light
- D. Refraction of light Discuss
- 4. What does airbag, used for safety of car driver, contain?
Options- A. Sodium bicarbonate
- B. Sodium azide
- C. Sodium nitrite
- D. Sodium peroxide Discuss
- 5. In a laser (say neon laser) all the atoms emit the light waves of
Options- A. Same frequency
- B. Same amplitude
- C. Same phase
- D. All the above Discuss
- 6. What is the most common form of iodine deficiency? Discuss
- 7. As you go down into a well, your weight
Options- A. increases slightly
- B. decreases slightly
- C. remains exactly the same
- D. none of these Discuss
- 8. What is the full form of 'laser'? Discuss
- 9. Ecology deals with the study of
Options- A. Environment
- B. Birds
- C. Organisms and their Environment
- D. Living beings Discuss
- 10. The Rain Shadow Effect is associated with
Options- A. Convectional rainfall
- B. Frontal rainfall
- C. Cyclonic rainfall
- D. Orographic rainfall Discuss
General Science problems
Search Results
Correct Answer: deuterium oxide
Correct Answer: Magnesium
Explanation:
Magnesium is dissolved in seawater at a concentration of about 1,000 parts per million and is the only metal directly extracted from seawater.
Correct Answer: Dispersion of light
Correct Answer: Sodium azide
Correct Answer: All the above
Correct Answer: Goitre
Correct Answer: decreases slightly
Correct Answer: Light amplification by stimulated emission of radiation
Correct Answer: Organisms and their Environment
Correct Answer: Orographic rainfall
Explanation:
Orographic precipitation or Rain produced when moist air is lifted as it moves over a mountain range. As the air rises and cools, orographic clouds form and serve as the source of the precipitation, most of which falls upwind of the mountain ridge.
Some also falls a short distance downwind of the ridge and is sometimes called spillover. On the lee side of the mountain range, rainfall is usually low, and the area is said to be in a Rain Shadow.
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