You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 5 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Average score
Your score
Categories
Not categorized0%
Your result has been entered into leaderboard
Loading
1
2
3
4
5
Answered
Review
Question 1 of 5
1. Question
2 points
Consider the following biotic interaction among two species:
Type Biotic interaction
1. Commensalism: One species harmed, the other is unaffected.
2.Amensalisam: One species is benefitted, the other is unaffected.
3.Competition: Both species are harmed by the interaction.
Which of the pairs above is/are correctly matched?
Correct
Correct Answer: B
• Option B is correct. Pair 3 is correctly matched. Pairs 1 and 2 are incorrectly matched.
• Pair 1 is incorrectly matched. Commensalism is a type of biotic interaction in which one species benefits, the other is unaffected. For example, various dung beetles feed upon the dung of animals. Dung beetles benefit from other animals, whereas beetles have no effect on other animals.
• Pair 2 is incorrectly matched. Amensalisam is one of the types of biotic interaction in which one species is harmed, the other is unaffected. Example: In equatorial forest, the small plants are in the shade of a large tree. Large tree retards the growth of the small plant as sunlight doesn’t reach to the bottom. The small plant has no effect on the large tree.
• Pair 3 is correctly matched. Competition is a type of biotic interaction in which both species are harmed by the interaction. For Example, if two species live in the same habitat, and there isn’t enough space for both, they both suffer a shortage of space to live and hence two species will compete for space and both are affected adversely.
Incorrect
Correct Answer: B
• Option B is correct. Pair 3 is correctly matched. Pairs 1 and 2 are incorrectly matched.
• Pair 1 is incorrectly matched. Commensalism is a type of biotic interaction in which one species benefits, the other is unaffected. For example, various dung beetles feed upon the dung of animals. Dung beetles benefit from other animals, whereas beetles have no effect on other animals.
• Pair 2 is incorrectly matched. Amensalisam is one of the types of biotic interaction in which one species is harmed, the other is unaffected. Example: In equatorial forest, the small plants are in the shade of a large tree. Large tree retards the growth of the small plant as sunlight doesn’t reach to the bottom. The small plant has no effect on the large tree.
• Pair 3 is correctly matched. Competition is a type of biotic interaction in which both species are harmed by the interaction. For Example, if two species live in the same habitat, and there isn’t enough space for both, they both suffer a shortage of space to live and hence two species will compete for space and both are affected adversely.
Question 2 of 5
2. Question
2 points
Consider the following statement in context of Zooxanthellae in Coral reefs.
1.Mutualistic relation exists between Coral polyps and Zooxanthellae.
2.Fungi Zooxanthellae assist the coral in nutrient production through its photosynthetic activities 3.The corals receive their coloration from the zooxanthellae living within their tissues.
Which of the statements given above is/are correct?
Correct
Correct Answer: C
• Option C is correct.
• The corals and these special cells have a mutualistic relationship. The coral provides the zooxanthellae with a protected environment and compounds they need for photosynthesis. In return, the zooxanthellae produce oxygen and help the coral to remove wastes. Hence, statement 1 is correct.
• ‘Zooxanthellae’ are microscopic algae (not fungi) which live on coral. Zooxanthellae instead of living on the seafloor, the algae lives up on the coral which is closer to the ocean surface and so that the algae gets adequate light. Hence, statement 2 is incorrect.
• The tissues of corals themselves are actually not the beautiful colors of the coral reef, but are instead clear (white). The corals receive their coloration from the zooxanthellae living within their tissues. Hence, statement 3 is correct.
Incorrect
Correct Answer: C
• Option C is correct.
• The corals and these special cells have a mutualistic relationship. The coral provides the zooxanthellae with a protected environment and compounds they need for photosynthesis. In return, the zooxanthellae produce oxygen and help the coral to remove wastes. Hence, statement 1 is correct.
• ‘Zooxanthellae’ are microscopic algae (not fungi) which live on coral. Zooxanthellae instead of living on the seafloor, the algae lives up on the coral which is closer to the ocean surface and so that the algae gets adequate light. Hence, statement 2 is incorrect.
• The tissues of corals themselves are actually not the beautiful colors of the coral reef, but are instead clear (white). The corals receive their coloration from the zooxanthellae living within their tissues. Hence, statement 3 is correct.
Question 3 of 5
3. Question
2 points
With reference to Geothermal Energy, consider the following statements:
1. It is a renewable source of energy which unlike solar and wind energy remains available throughout the year.
2. Iceland is the world’s largest producer of geothermal energy.
3. There are no emissions associated with the utilization of geothermal energy.
Which of the statements given above is/are correct?
Correct
Correct Answer: A
• Option A is correct.
Geothermal energy is generated in over 20 countries. The United States is the world’s largest producer, and the largest geothermal development in the world is The Geysers north of San Francisco in
California. In Iceland, many of the buildings and even swimming pools are heated with geothermal hot water. Iceland has at least 25 active volcanoes and many hot springs and geysers. Hence statement 2 is incorrect.
• There are many advantages of geothermal energy. It can be extracted without burning a fossil fuel such as coal, gas, or oil. Geothermal fields produce only about one-sixth of the carbon dioxide that a relatively clean natural-gas-fueled power plant produces. Binary plants release essentially no emissions. Unlike solar and wind energy, geothermal energy is always available, 365 days a year. It’s also relatively inexpensive; savings from direct use can be as much as 80 percent over fossil fuels. Hence, statement 1 is correct.
• But it has some environmental problems. The main concern is the release of hydrogen sulfide, a gas that smells like rotten egg at low concentrations. Another concern is the disposal of some geothermal fluids, which may contain low levels of toxic materials. Although geothermal sites are capable of providing heat for many decades, eventually specific locations may cool down. Hence, only statement 1 is correct.
Incorrect
Correct Answer: A
• Option A is correct.
Geothermal energy is generated in over 20 countries. The United States is the world’s largest producer, and the largest geothermal development in the world is The Geysers north of San Francisco in
California. In Iceland, many of the buildings and even swimming pools are heated with geothermal hot water. Iceland has at least 25 active volcanoes and many hot springs and geysers. Hence statement 2 is incorrect.
• There are many advantages of geothermal energy. It can be extracted without burning a fossil fuel such as coal, gas, or oil. Geothermal fields produce only about one-sixth of the carbon dioxide that a relatively clean natural-gas-fueled power plant produces. Binary plants release essentially no emissions. Unlike solar and wind energy, geothermal energy is always available, 365 days a year. It’s also relatively inexpensive; savings from direct use can be as much as 80 percent over fossil fuels. Hence, statement 1 is correct.
• But it has some environmental problems. The main concern is the release of hydrogen sulfide, a gas that smells like rotten egg at low concentrations. Another concern is the disposal of some geothermal fluids, which may contain low levels of toxic materials. Although geothermal sites are capable of providing heat for many decades, eventually specific locations may cool down. Hence, only statement 1 is correct.
Question 4 of 5
4. Question
2 points
Consider the following statements with reference to the conservation reserves:
1. The areas owned by private individuals can be declared as Conservation reserves for the conservation of local species.
2. The areas adjacent to national parks and sanctuaries and those areas which link one protected area with another can be declared as conservation reserves.
3. The Urban Local Bodies constitute the Conservation Reserve Management Committee to advise District Forest Officer to maintain conservation reserve.
Which of the statements given above are correct?
Correct
Correct Answer: B
• Option B is correct. Statement2 is correct. Statement 1 and 3 are incorrect.
• The State Government may, after having consultations with the local communities, declare any area owned by the Government, particularly the areas adjacent to National Parks and sanctuaries and those areas which link one protected area with another, as a conservation reserve for protecting landscapes, seascapes, flora and fauna and their habitat. Hence, statement 1 is not correct and statement 2 is correct.
• The State Government shall constitute a conservation reserve management committee to advise the Chief Wildlife Warden to conserve, manage and maintain the conservation reserve. Hence, statement 3 is incorrect.
Incorrect
Correct Answer: B
• Option B is correct. Statement2 is correct. Statement 1 and 3 are incorrect.
• The State Government may, after having consultations with the local communities, declare any area owned by the Government, particularly the areas adjacent to National Parks and sanctuaries and those areas which link one protected area with another, as a conservation reserve for protecting landscapes, seascapes, flora and fauna and their habitat. Hence, statement 1 is not correct and statement 2 is correct.
• The State Government shall constitute a conservation reserve management committee to advise the Chief Wildlife Warden to conserve, manage and maintain the conservation reserve. Hence, statement 3 is incorrect.
Question 5 of 5
5. Question
2 points
With reference to ecology, the term Soil Steaming refers to
Correct
Correct Answer: A
• Option A is correct.
Soil Steaming is a method of soil sterilization. It is the act of killing or destroying the action of diseases causing organism that are present in the soil without causing harm to other plants.
Incorrect
Correct Answer: A
• Option A is correct.
Soil Steaming is a method of soil sterilization. It is the act of killing or destroying the action of diseases causing organism that are present in the soil without causing harm to other plants.
