[Mission 2023] Current Affairs Quiz , 30 September 2022

Solution: b)

Carbon dating cannot be applied in all circumstances. Specifically, it cannot be used to determine the age of non-living things. Also, the age of things that are more than 40,000-50,000 years cannot be arrived at through carbon dating.

There are other methods to calculate the age of inanimate things, but carbon dating can also be used in an indirect way in certain circumstances. For example, the age of the ice cores in glaciers and polar regions is determined using carbon dating by studying the carbon dioxide molecules trapped inside large ice sheets. The trapped molecules have no interaction with the outside atmosphere and are found in the same state as when they were trapped.

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Solution: b)

For the first time since May 2019, the banking system liquidity situation turned into a deficit mode of Rs 21,873.4 crore on September 20, 2022.

What is banking system liquidity?

Liquidity in the banking system refers to readily available cash that banks need to meet short-term business and financial needs. On a given day, if the banking system is a net borrower from the RBI under Liquidity Adjustment Facility (LAF), the system liquidity can be said to be in deficit and if the banking system is a net lender to the RBI, the system liquidity can be said to be in surplus. The LAF refers to the RBI’s operations through which it injects or absorbs liquidity into or from the banking system.

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Solution: d)

Provisions of the Constitution:

• The relevant Constitutional provisions stand on two legs, which are mutually supportive. On the one hand, there is the principle of Equality, which prohibits the State from discrimination against any citizen on grounds only of religion, race, caste, sex, place of birth or any of them under Article 15(1), and guarantees “equality of opportunity for all citizens in matters relating to employment or appointment to any office under the State” under Article 16(1), in addition to prohibition against discrimination against any citizen on the same grounds as in Article 15(1), specifically with respect to employment or appointment under the State.
• The other leg is the special provisions, which under Article 15(4) empowers the State to “make any provision for the advancement of any socially and educationally backward classes of citizens or for the Scheduled Castes and Scheduled Tribes”, and under Article 16(4) provides “for the reservation of appointments or posts in favour of any backward class of citizens, which in the opinion of the State, is not adequately represented in the services under the State”.

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Solution: c)

Application of green leaves and twigs of trees, shrubs and herbs collected from elsewhere is known as green leaf manuring. Forest tree leaves are the main sources for green leaf manure. Plants growing in wastelands, field bunds etc., are another source of green leaf manure.

The important plant species useful for green leaf manure are neem, mahua, wild indigo, Glyricidia, Karanji (Pongamia glabra) calotropis, avise(Sesbania grandiflora), subabul and other shrubs.

Advantages:

• Green manuring improves soil structure, increases water holding capacity and decreases soil loss by erosion.
• Growing of green manure crops in the off season reduces weed proliferation and weed growth.
• Green manuring helps in reclamation of alkaline soils. Root knot nematodes can be controlled by green manuring.

Solution: b)

Carbon neutrality refers to achieving net zero carbon dioxide emissions by balancing carbon dioxide emissions with removal (often through carbon offsetting) or simply eliminating carbon dioxide emissions altogether (the transition to the “post-carbon economy”).

Although both renewable and non-renewable energy both produce carbon emissions in some form, renewable energy has a lesser to almost zero carbon emissions.