[MISSION 2022] INSIGHTS CURRENT AFFAIRS ( 27 September 2021) REVISION THROUGH MCQS – INSIGHTSIAS

Ans: (a)
Explanation:

• Cyclones are formed over the oceanic water in the tropical region.
• In this region, the sunlight is highest which results in warming of land and water surface. Due to warming of the surface, the warm moist air over the ocean rises upwards following which cool air rushes in to fill the void, they too get warm and rise — the cycle continues.
• In anticyclones, air comes in from above and sinks to the ground. High pressure centers generally have fair weather.

Refer: https://www.insightsonindia.com/2021/09/27/cyclone-gulab/

Ans: (d)

Explanation:

• Landfall is the event of a storm moving over land after being over water.
• What happens when a cyclone hits the land?
  • Cyclone dissipates when it hits the land as the warm water that rises and creates space for cool water is no longer available on land. Also, the moist air that rises up forms clouds leading to rains that accompany gusting winds during cyclones.

Refer: https://www.insightsonindia.com/2021/09/27/cyclone-gulab/

Ans: (a)

Explanation:

• S1: The fund consists entirely of voluntary contributions from individuals/organizations and does not get any budgetary support.
• S2: As per the PM CARES Fund rules, the minimum donation can be INR 1.

Refer: https://www.insightsonindia.com/2021/09/27/202832/

Ans: (d)

Explanation:

• It is the world’s most sensitive dark matter experiment and was operated deep underground at the INFN Laboratori Nazionali del Gran Sasso in Italy.
• It uses the dual-phase (liquid/gas) xenon technique and is located underground at the Laboratory Nazionali del Gran Sasso of INFN, Italy.

Refer: https://www.insightsonindia.com/2021/09/27/what-is-dark-energy-2/

Ans: (d)

Explanation:

• S1: Einstein’s theory of relativity has important astrophysical implications. For example, it implies the existence of black holes—regions of space in which space and time are distorted in such a way that nothing, not even light, can escape—as an end-state for massive stars.
  • There is ample evidence that the intense radiation emitted by certain kinds of astronomical objects is due to black holes; for example, micro quasars and active galactic nuclei result from the presence of stellar black holes and super massive black holes, respectively.
  • The bending of light by gravity can lead to the phenomenon of gravitational lensing, in which multiple images of the same distant astronomical object are visible in the sky. Hence, statement 1 is correct.
• S2: General relativity also predicts the existence of gravitational waves, which have since been observed directly by the physics collaboration LIGO. In addition, general relativity is the basis of current cosmological models of a consistently expanding universe. Hence, statement 2 is correct.
• S3: General relativity is Einstein’s law of gravity, his Justification of that fundamental force which holds us to the surface of the Earth. Gravity, Einstein asserted, is caused by warping of space and time or space-time. Hence, statement 3 is correct.

Refer: https://www.insightsonindia.com/2021/09/27/what-is-dark-energy-2/

Ans: (a)

Explanation:

Refer: Indian maps

Ans: (c)

Explanation:

• S4: Mula and Mutha Rivers originate in the Sahyadri ranges and traverse across Pune (not Mumbai).
• S1: National Waterways 6 is a waterway between Lakhipur (Assam) and Bhanga of the Barak River.
• S3: Chennai has three main rivers – the Kosasthalaiyar to the north, the Adyar river to the south, and the Cooum flowing between them across central Chennai.
• S2: Dravyavati River is major South-flowing river in Rajasthan. It originates in on the western slope of Amber hills and flows through the Jaipur city, north to south over a length of 47.5 km, providing a major of water to the City. It finally joins the Dhund river, near Santoshpura.
  •  Most of the Jaipur city’s population stays within the 10 km periphery of Dravyavati river.

Refer: River Map of India

Ans: (c)

Explanation:

• The countries surrounding the Mediterranean Sea in clockwise order are Spain, France, Monaco, Italy, Slovenia, Croatia, Bosnia and Herzegovina, Montenegro, Albania, Greece, Turkey, Syria, Lebanon, Israel, Egypt, Libya, Tunisia, Algeria, and Morocco; Malta and Cyprus are island countries in the sea. In addition, the Gaza Strip and the British Overseas Territories of Gibraltar and Akrotiri and Dhekelia have coastlines on the sea.
• Uruguay is a country in South America.

Refer: physical map of the world