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- Question
What reacts with oxygen to produce rust?
Options- A. Aluminium
- B. Silver
- C. Copper
- D. Iron
- Correct Answer
- Iron
ExplanationIron reacts with oxygen in the presence of moisture or water to form a red oxide called rust and the reaction involved is called as Redox reaction.
- 1. Which of the following includes all the others?
Options- A. Cellulose
- B. Glucose
- C. Sucrose
- D. Glycogen Discuss
- 2. Select the correct statement about the process of scientific inquiry.
Options- A. The goal of scientific research is to prove the stated hypothesis.
- B. It is possible to test hypotheses, such as those involving historical events, without conducting experiments.
- C. If the results of an experiment do not support the hypothesis that is tested, the experiment is badly designed.
- D. All of the above Discuss
- 3. Refractory bricks are used for
Options- A. To increase heat flow
- B. To decrease heat flow
- C. To reflect heat
- D. None of the above Discuss
- 4. The mechanism of water reabsorption by the renal tubules is
Options- A. solvent drag
- B. osmosis
- C. active transport
- D. cotransport with sodium ions Discuss
- 5. Which new European satellite using advanced laser technology to track global winds and improve weather forecasts has been successfully put into orbit on a Vega rocket from French Guyana?
Options- A. Radyo 4
- B. Aeolus
- C. Eutelsat W 2
- D. Telstar 12 Discuss
- 6. Stimulus diffusion example? Discuss
- 7. Which clade does not include humans?
Options- A. diapsids
- B. craniates
- C. synapsids
- D. lobe fins Discuss
- 8. Which of the following is an example of secondary succession?
Options- A. sedimentation on the bottom of drained lake
- B. landscaping at a golf course
- C. reforestation of the cedar forests of the northwest
- D. scrub grasses growing on a newly exposed dune Discuss
- 9. Particles of matter are continuously moving.
Options- A. TRUE
- B. FALSE Discuss
- 10. Which of the following foods does not support bacterial growth?
Options- A. Saut ed onions
- B. Raw egg
- C. Both A & B
- D. Gravy Discuss
General Science problems
Search Results
Correct Answer: Glucose
Explanation:
Here cellulose, sucrose and glycogen are all the forms of glucose. Hence, glucose includes all the other three given options.
Correct Answer: It is possible to test hypotheses, such as those involving historical events, without conducting experiments.
Explanation:
The correct statement among the given options about the process of scientific inquiry is "It is possible to test hypotheses, such as those involving historical events, without conducting experiments."
Although it is not possible to carry out experiments to test hypotheses about evolutionary relationships between living groups or about the timing of the origin of major evolutionary innovations, such hypotheses can be evaluated by making predictions about the expected findings that would result from these hypotheses. Data can then be collected to test whether these predictions are correct.
Correct Answer: To decrease heat flow
Correct Answer: osmosis
Explanation:
Water reabsorption by the renal tubules is harmonally controlled and it is a osmosis mechanism.
Correct Answer: Aeolus
Correct Answer: Stimulus diffusion is a type of expansion diffusion in which the idea is acceptable or adopted but not in its original form and expanded to culturally acceptable For example : 1 Mc Donalds is also in India but not in beef Indians culture will not accept beef and so it is with different forms like veg, non veg but the idea is same 2 Yoga is an idea where in different regions use yoga for different reasons but the idea is same
Correct Answer: diapsids
Correct Answer: reforestation of the cedar forests of the northwest
Explanation:
Secondary succession means in an ecosystem renewal of itself after all or a portion has been destroyed.
After a forest fire, the whole forest had destroyed but after that again renewal of that forest is also an example of secondary succession.
Correct Answer: TRUE
Explanation:
Yes, in any matter the particles are always moving. But the speed of the particles moving sepends on the temperature. As temperature increases, the speed of the particles also increases.
Correct Answer: Raw egg
Explanation:
Dried foods like raw egg, raw carrots, milk powder, etc... are the foods that do not support bacterial growth and has a long storage life.
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