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Day-490
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Question 1 of 5
1. Question
2 points1. The term ‘Rule curve’, recently seen in the news, is related to which of the following?
Correct
Answer: B
Explanation:
● According to Tamil Nadu Water Resources Organisation, Mullaperiyar is the first reservoir to have Rule Curve implemented in the country.
Option (b) is correct:
● Rule Curve is a tabulation which specifies the quantum of storage of water or empty space to be maintained in a reservoir during different times of a year, based on the rainfall data for 35 years.Incorrect
Answer: B
Explanation:
● According to Tamil Nadu Water Resources Organisation, Mullaperiyar is the first reservoir to have Rule Curve implemented in the country.
Option (b) is correct:
● Rule Curve is a tabulation which specifies the quantum of storage of water or empty space to be maintained in a reservoir during different times of a year, based on the rainfall data for 35 years. -
Question 2 of 5
2. Question
2 points2. Consider the following statements regarding the ‘SARAS 3’ Telescope:
1. It is a precision radio telescope to detect extremely faint radio wave signals.
2. It is built with the help of NASA.
3. It can help provide information about the first generation of galaxies.
Which of the above given statements is/are correct?Correct
Answer: C
Explanation:
SARAS 3 has helped determine properties of the earliest radio luminous galaxies formed 200 million years after the Big Bang, a period known as the Cosmic Dawn.
● Statement 1 is correct: SARAS 3 has helped determine properties of the earliest radio luminous galaxies formed 200 million years after the Big Bang, a period known as the Cosmic Dawn. SARAS 3 is the first telescope worldwide to reach the required sensitivity.
● Statement 2 is incorrect: Shaped Antenna measurement of the background Radio Spectrum 3 (SARAS) telescope is indigenously designed and built at Raman Research Institute. It was deployed over Dandiganahalli Lake and Sharavathi backwaters, located in Northern Karnataka, in early 2020.
● Statement 3 is correct: In a first-of-its-kind work, using data from SARAS 3, researchers from different institutions estimated the energy output, luminosity, and masses of the first generation of galaxies that are bright in radio wavelengths.Incorrect
Answer: C
Explanation:
SARAS 3 has helped determine properties of the earliest radio luminous galaxies formed 200 million years after the Big Bang, a period known as the Cosmic Dawn.
● Statement 1 is correct: SARAS 3 has helped determine properties of the earliest radio luminous galaxies formed 200 million years after the Big Bang, a period known as the Cosmic Dawn. SARAS 3 is the first telescope worldwide to reach the required sensitivity.
● Statement 2 is incorrect: Shaped Antenna measurement of the background Radio Spectrum 3 (SARAS) telescope is indigenously designed and built at Raman Research Institute. It was deployed over Dandiganahalli Lake and Sharavathi backwaters, located in Northern Karnataka, in early 2020.
● Statement 3 is correct: In a first-of-its-kind work, using data from SARAS 3, researchers from different institutions estimated the energy output, luminosity, and masses of the first generation of galaxies that are bright in radio wavelengths. -
Question 3 of 5
3. Question
2 points3. Consider the following statements about the outcome of COP27 of the UNFCCC:
1. A Loss and Damage Fund has been established for supporting poor and vulnerable countries.
2. It has concluded the Global Goal on Adaptation.
3. For the first time, nations have been called upon to phase down unabated coal power and inefficient subsidies for fossil fuels.
Which of the above given statements is/are correct?Correct
Answer: A
Explanation:
The 27th Conference of Parties to the United Nations Framework Convention on Climate Change (COP27) took place in Sharm el-Sheikh (Egypt).
● Statement 1 is correct: UNFCCC COP27 setup of a “loss and damage fund” for supporting poor vulnerable countries that are victims of extreme weather. Also arrangements to operationalize Santiago Network for Loss and Damage, to catalyse technical assistance to developing countries vulnerable to adverse effects of climate change have been made.
● Statement 2 is incorrect: COP27 saw significant progress on adaptation, with governments agreeing on the way to move forward on the Global Goal on Adaptation, which will conclude at COP28 and inform the first Global Stock take, improving resilience amongst the most vulnerable.
● Statement 3 is incorrect: For the first time, nations are called upon to phase down unabated coal power and inefficient subsidies for fossil fuels in the Glasgow Climate Pact 2021(COP 26 of UNFCCC).Incorrect
Answer: A
Explanation:
The 27th Conference of Parties to the United Nations Framework Convention on Climate Change (COP27) took place in Sharm el-Sheikh (Egypt).
● Statement 1 is correct: UNFCCC COP27 setup of a “loss and damage fund” for supporting poor vulnerable countries that are victims of extreme weather. Also arrangements to operationalize Santiago Network for Loss and Damage, to catalyse technical assistance to developing countries vulnerable to adverse effects of climate change have been made.
● Statement 2 is incorrect: COP27 saw significant progress on adaptation, with governments agreeing on the way to move forward on the Global Goal on Adaptation, which will conclude at COP28 and inform the first Global Stock take, improving resilience amongst the most vulnerable.
● Statement 3 is incorrect: For the first time, nations are called upon to phase down unabated coal power and inefficient subsidies for fossil fuels in the Glasgow Climate Pact 2021(COP 26 of UNFCCC). -
Question 4 of 5
4. Question
2 points4. Consider the following statements about black corals:
1. They are found only in the deep sea.
2. Unlike the shallow water corals, they are not dependent upon the symbiotic association with the algae.
3. They act as filter feeders in the oceans.
Which of the statements given above is/are correct?Correct
Answer: D
Explanation:
Researchers have discovered new species of black coral living as deep as 2,500 feet (760 meters) below the surface in the Great Barrier Reef and Coral Sea off the coast of Australia.
● Statement 1 is incorrect: Black corals can be found growing both in shallow waters and down to depths of over 26,000 feet (8,000 meters), and some individual corals can live for over 4,000 years.
● Statement 2 is correct: They do not depend upon symbiotic algae and light to produce energy.
● Statement 3 is correct: Black corals are filter feeders and eat tiny zooplankton that are abundant in deep waters.
About Black Corals:
● Black corals are a group of corals that belong to the order Antipatharia. Black corals are found all over the world and at all depths. Typically, however, they are known as deep-sea corals and can be abundant in certain areas.
● Black corals are rarely black, but rather vary in color from white to red, green, yellow, or brown. They also range in shape from small bushes to bottle brushes to fans to single stalks.
● The black corals differ greatly from stony corals in terms of their skeletons. All black corals have a skeleton made of protein and chitin (the same material as an insect skeleton). In addition, black corals do not have symbiotic algae associated with them, and they do not require light which enables them to extend into depths where light is not present.
● Of the 200-plus black coral species, more than 15 are found in Hawaii. Although found at all depths, black corals can be a dominant feature of Hawaii’s unique deep coral reef environment. Particularly, black corals are very common in the Au’au Channel, between Maui and Lanai. This unique area has a high abundance of black coral habitat and has been the basis of a coral fishery for almost 50 yrs.Incorrect
Answer: D
Explanation:
Researchers have discovered new species of black coral living as deep as 2,500 feet (760 meters) below the surface in the Great Barrier Reef and Coral Sea off the coast of Australia.
● Statement 1 is incorrect: Black corals can be found growing both in shallow waters and down to depths of over 26,000 feet (8,000 meters), and some individual corals can live for over 4,000 years.
● Statement 2 is correct: They do not depend upon symbiotic algae and light to produce energy.
● Statement 3 is correct: Black corals are filter feeders and eat tiny zooplankton that are abundant in deep waters.
About Black Corals:
● Black corals are a group of corals that belong to the order Antipatharia. Black corals are found all over the world and at all depths. Typically, however, they are known as deep-sea corals and can be abundant in certain areas.
● Black corals are rarely black, but rather vary in color from white to red, green, yellow, or brown. They also range in shape from small bushes to bottle brushes to fans to single stalks.
● The black corals differ greatly from stony corals in terms of their skeletons. All black corals have a skeleton made of protein and chitin (the same material as an insect skeleton). In addition, black corals do not have symbiotic algae associated with them, and they do not require light which enables them to extend into depths where light is not present.
● Of the 200-plus black coral species, more than 15 are found in Hawaii. Although found at all depths, black corals can be a dominant feature of Hawaii’s unique deep coral reef environment. Particularly, black corals are very common in the Au’au Channel, between Maui and Lanai. This unique area has a high abundance of black coral habitat and has been the basis of a coral fishery for almost 50 yrs. -
Question 5 of 5
5. Question
2 points5. Zombie Ice, sometimes seen in the news, refers to which of the following?
Correct
Answer: B
Explanation:
● A new study finds that Greenland has more than 120 trillion tons of ice that can be thought of as zombie ice that’s going to raise sea level globally by at least 10 inches.
Option (b) is correct:
● Zombie ice is also called doomed ice. It is still attached to thicker areas of ice, and is no longer getting replenished by parent glaciers now receiving less snow. Without replenishment, the doomed ice is melting from climate change and will inevitably raise seas.Incorrect
Answer: B
Explanation:
● A new study finds that Greenland has more than 120 trillion tons of ice that can be thought of as zombie ice that’s going to raise sea level globally by at least 10 inches.
Option (b) is correct:
● Zombie ice is also called doomed ice. It is still attached to thicker areas of ice, and is no longer getting replenished by parent glaciers now receiving less snow. Without replenishment, the doomed ice is melting from climate change and will inevitably raise seas.