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- Question
The largest source of pollution in the world is
Options- A. herbicides and insecticides
- B. Automobile exhausts
- C. Sewage and garbage
- D. Industrial effluents
- Correct Answer
- Sewage and garbage
- 1. Auxiliary bud develops into which of the following part of the plant?
Options- A. Fruit
- B. Leaf
- C. Branch
- D. Roots Discuss
- 2. What is the accepted average Calorie requirement for rural area in India?
Options- A. 2100
- B. 2200
- C. 2300
- D. 2400 Discuss
- 3. Choose the correct order of electrical resistivity of metals.
Options- A. Ag > W > Ni > Hg
- B. Hg > Ni > W > Ag
- C. Ag > Ni > Hg > W
- D. Ag > W > Hg > Ni Discuss
- 4. Rise in sugar levels in blood is detected by the cells of:
Options- A. Liver
- B. Gall bladder
- C. Kidney
- D. Pancreas Discuss
- 5. Weight of an object on the moon is ............ the weight of the object on earth.
Options- A. equal to
- B. 1/6th
- C. 1/2
- D. 1/5th Discuss
- 6. Term ?Visible Horizon? in astronomy is defined as:-
Options- A. The circle of contact of the earth and the cone of visual rays passing through the meridian of the place.
- B. The circle of contact of the earth and the cone of visual rays not passing through the meridian of the place.
- C. The circle of contact of the earth and the cone of visual rays passing through the point of observation.
- D. The circle of contact of the earth and the cone of visual rays not passing through the point of observation. Discuss
- 7. Limonitic ore is the ore of which metal?
Options- A. Iron
- B. Aluminium
- C. Zinc
- D. Cobalt Discuss
- 8. Which one of the following gases is released mostly from landfills in urban areas?
Options- A. Nitrogen
- B. Hydrogen
- C. Methane
- D. Oxygen Discuss
- 9. Which one of the following is most sensitive to environmental change?
Options- A. Amphibian
- B. Reptile
- C. Mammal
- D. Insect Discuss
- 10. The HIV virus weakens the immunity of a person because it destroys
Options- A. mast cells
- B. platelets
- C. erythrocytes
- D. lymphocytes Discuss
General Science problems
Search Results
Correct Answer: Branch
Correct Answer: 2400
Correct Answer: Hg > Ni > W > Ag
Correct Answer: Pancreas
Correct Answer: 1/6th
Correct Answer: The circle of contact of the earth and the cone of visual rays passing through the point of observation.
Explanation:
Visible Horizon is the circle of contract, with the earth, of the cone of visual rays passing through the point of observation.
Correct Answer: Iron
Explanation:
Limonite is one of the two principal iron ores, the other being hematite, and has been mined for the production of iron.
Correct Answer: Methane
Explanation:
Decomposing waste in the landfills, by the action of microorganisms, produce methane and carbon dioxide. Landfill gas consists of 40-60% of methane and rest is carbon dioxide. Trace amount of volatile organic compounds (<1) are also present which mainly comprise of hydrocarbons.
Correct Answer: Amphibian
Explanation:
Amphibians are one of the most sensitive groups to change, whether that is caused by habitat loss, invasive species, disease, trade or climate change. Their sensitivity to environmental threats has been generally linked to the observation that amphibians are characterized by a rather permeable skin. Given their complex life cycles and other traits, amphibians are often recognized as indicators of ecosystem health.
Correct Answer: lymphocytes
Explanation:
The HIV virus continuously invades and destroys T-cells (lymphocytes). Eventually the body can't replace the T-cells fast enough, and the immune system deteriorates. When the immune system has deteriorated to the point that it is unable to fight off diseases, a person is diagnosed with AIDS.
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