General Science Practice Question and Answer
8 Q: The main reason why the sky appears blue?
1724 05f912f5a7793eb35d72d8391
5f912f5a7793eb35d72d8391- 1Sunlight is bluefalse
- 2Scattering of solar rays by particles of dust etc. present in the atmospheretrue
- 3light reflectionfalse
- 4light refractionfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Scattering of solar rays by particles of dust etc. present in the atmosphere"
Q: Which of the following is the softest?
1717 05eeb1496eee45c3b837b0312
5eeb1496eee45c3b837b0312- 1Sodiumtrue
- 2Copperfalse
- 3Ironfalse
- 4Aluminumfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Sodium"
Q: Which of the following is the most common kidney stone-forming compound?
1713 05ee85d18c9ddb00b8bda9adc
5ee85d18c9ddb00b8bda9adc- 1Calcium oxalatetrue
- 2Magnesium oxidefalse
- 3Sodium bicarbonatefalse
- 4Magnesium citratefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Calcium oxalate"
Q: Which of the following is false?
Sound waves are _________ waves.
1704 05ee85c07109b5d6e015e31ed
5ee85c07109b5d6e015e31edSound waves are _________ waves.
- 1Pressurefalse
- 2Longitudinaltrue
- 3Electromagneticfalse
- 4Mechanicalfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Longitudinal"
Q: Who among the following are the inventors of dynamite?
1697 05f912dd4c011be03879fe9a4
5f912dd4c011be03879fe9a4- 1Einsteinfalse
- 2Newtonfalse
- 3Alfred Nobeltrue
- 4Madame Curiefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Alfred Nobel"
Q: Which of the following is a disease caused by bacteria?
1677 060363803e62cee435672f5ba
60363803e62cee435672f5ba- 1Titanustrue
- 2Malariafalse
- 3Poliomyelitisfalse
- 4Filariafalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Titanus"
Explanation :
All of these diseases are caused by bacteria i.e. Pneumonia, Cholera, Tuberculosis. Cancer is caused by uncontrolled cell division. Pneumonia is caused by a bacterium Streptococcus pneumoniae. Cholera is caused by a bacterium Vibrio cholerae.
Q: The endoplasmic reticulum was discovered?
1673 05ee83caca08a50198d8d021d
5ee83caca08a50198d8d021d- 1Portertrue
- 2Darwinfalse
- 3Huxleyfalse
- 4Purkinjefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Porter"
Q: The average salinity of sea water is
1669 05edefa608c4c964f73d37fc0
5edefa608c4c964f73d37fc0- 12%false
- 23%false
- 33.5%true
- 42.5%false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "3.5%"
Explanation :
The average salinity of sea water is 3.5% or 35 parts per thousand. In other words, for every 1 litre of sea water there is 35 grams of dissolved salts (NaCl) .