Daily Quiz 03 March 2025
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Question 1 of 5
1. Question
1 pointsConsider the following statements:
1. All coliform bacteria are harmful for humans.
2. Faecal coliform bacteria is a class of microorganisms found in the excreta or waste produced by all warm-blooded animals and humans.
Which of the statements given above is/are correct?Correct
Answer: B
Explanation:
- Statement 1 is not correct: No, not all coliform bacteria are harmful, but some strains can cause illness. Coliform bacteria will not likely cause illness. However, their presence in drinking water indicates that disease-causing organisms (pathogens) could be in the water system. Most pathogens that can contaminate water supplies come from the feces of humans or animals.
Statement 2 is correct: Faecal coliform bacteria is a class of microorganisms found in the excreta or waste produced by all warm-blooded animals and humans. Generally it is found inside human and animal intestines.
Incorrect
Answer: B
Explanation:
- Statement 1 is not correct: No, not all coliform bacteria are harmful, but some strains can cause illness. Coliform bacteria will not likely cause illness. However, their presence in drinking water indicates that disease-causing organisms (pathogens) could be in the water system. Most pathogens that can contaminate water supplies come from the feces of humans or animals.
Statement 2 is correct: Faecal coliform bacteria is a class of microorganisms found in the excreta or waste produced by all warm-blooded animals and humans. Generally it is found inside human and animal intestines.
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Question 2 of 5
2. Question
1 pointsConsider the following statements with reference to Bacterial cellulose:
- It is a synthetic cellulose not found in nature that can be created by gene editing of certain bacteria.
- It has been used in human medicine, often for wound healing.
Which of the statements given above is/are correct?
Correct
Answer: B
Explanation:
- Statement 1 is not correct and statement 2 is correct: Bacterial cellulose is a natural polymer produced by certain bacteria. It has thus far been widely used in human medicine, often for wound healing.
Bacterial cellulose can be used as a bandage to significantly improve healing and regeneration in plants, researchers reported in a recent study.
Incorrect
Answer: B
Explanation:
- Statement 1 is not correct and statement 2 is correct: Bacterial cellulose is a natural polymer produced by certain bacteria. It has thus far been widely used in human medicine, often for wound healing.
Bacterial cellulose can be used as a bandage to significantly improve healing and regeneration in plants, researchers reported in a recent study.
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Question 3 of 5
3. Question
1 pointsConsider the following:
- Strength
- Location
- Distance from the epicentre
- Depth
An earthquake’s destructive force depends not how many of the above factors?
Correct
Answer: D
Explanation:
- Option D is correct: An earthquake’s destructive force depends not only on its strength, but also on location, distance from the epicentre and depth.
- Quakes can strike near the surface or deep within the Earth. Most quakes occur at shallow depths, according to the U.S. Geological Survey.
- Shallow quakes generally tend to be more damaging than deeper quakes. Seismic waves from deep quakes have to travel farther to the surface, losing energy along the way.
Incorrect
Answer: D
Explanation:
- Option D is correct: An earthquake’s destructive force depends not only on its strength, but also on location, distance from the epicentre and depth.
- Quakes can strike near the surface or deep within the Earth. Most quakes occur at shallow depths, according to the U.S. Geological Survey.
- Shallow quakes generally tend to be more damaging than deeper quakes. Seismic waves from deep quakes have to travel farther to the surface, losing energy along the way.
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Question 4 of 5
4. Question
1 pointsConsider the following statements with reference to Thermal power production in India:
- The Central Government has the maximum share in the total installed capacity.
- Private sector has more share than the State Governments in the total installed capacity.
- More than 50 percent of the total energy supply in India is from coal.
How many of the above statements are correct?
Correct
Answer: B
Explanation:
- Statement 1 is not correct and statement 2 is correct: India has a total installed capacity of 4,56,757 MW in which the central sector has 22.9% share, the State sector has 23.7% and the private sector, a 53.4% share. Out of the total electricity generation capacity from thermal power plants (2,37,268.91 MW), private sector power plants have a capacity of 85,899.095 MW (36.20%), the State sector has 75,991.905 MW (32.03%), and the central sector has the capacity of 75377.91 MW (31.77%). Central sector power plants which are located in several States, have 31.77 % of the total electricity generation capacity.
- Statement 3 is correct: India are 378.21 billion tonnes, of which Odisha alone accounts for 94.52 billion tonnes. Around 59.12% of the total energy supply in India is from coal. In India, around 73.08% (11,80,427.19 million units) and 1.48% (23,885.04 million units) of electricity are generated from coal, oil and natural gas, respectively, in 2022-23. Thus, the thermal power sector remains a major contributor to carbon emissions in India.
Incorrect
Answer: B
Explanation:
- Statement 1 is not correct and statement 2 is correct: India has a total installed capacity of 4,56,757 MW in which the central sector has 22.9% share, the State sector has 23.7% and the private sector, a 53.4% share. Out of the total electricity generation capacity from thermal power plants (2,37,268.91 MW), private sector power plants have a capacity of 85,899.095 MW (36.20%), the State sector has 75,991.905 MW (32.03%), and the central sector has the capacity of 75377.91 MW (31.77%). Central sector power plants which are located in several States, have 31.77 % of the total electricity generation capacity.
- Statement 3 is correct: India are 378.21 billion tonnes, of which Odisha alone accounts for 94.52 billion tonnes. Around 59.12% of the total energy supply in India is from coal. In India, around 73.08% (11,80,427.19 million units) and 1.48% (23,885.04 million units) of electricity are generated from coal, oil and natural gas, respectively, in 2022-23. Thus, the thermal power sector remains a major contributor to carbon emissions in India.
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Question 5 of 5
5. Question
1 pointsWhich one of the following statements about whales is correct?
Correct
Answer: C
Explanation:
- Option (a) is not correct. Baleen whales do not have teeth; they have baleen plates made of keratin that act as a filter-feeding system to trap small prey like krill and plankton.
- Option (b) is not correct. Toothed whales do have teeth, but they do not use them for chewing. Instead, they use their teeth to grab prey and swallow it whole.
- Option (c) is correct: Among all whales, only sperm whales have a throat large enough to swallow a human. However, such an event is extremely rare.
Option (d) is not correct: Although both baleen and toothed whales have large mouths, their throats are too small to swallow a human. Even a humpback whale’s throat is only about the size of a human fist.
Incorrect
Answer: C
Explanation:
- Option (a) is not correct. Baleen whales do not have teeth; they have baleen plates made of keratin that act as a filter-feeding system to trap small prey like krill and plankton.
- Option (b) is not correct. Toothed whales do have teeth, but they do not use them for chewing. Instead, they use their teeth to grab prey and swallow it whole.
- Option (c) is correct: Among all whales, only sperm whales have a throat large enough to swallow a human. However, such an event is extremely rare.
Option (d) is not correct: Although both baleen and toothed whales have large mouths, their throats are too small to swallow a human. Even a humpback whale’s throat is only about the size of a human fist.
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