[Mission 2023] Current Affairs Quiz ,8 November 2022

Solution: a)

Black carbon (BC) is a component of fine particulate matter. Black carbon consists of pure carbon in several linked forms. It is formed through the incomplete combustion of fossil fuels, biofuel, and biomass, and is emitted in both anthropogenic and naturally occurring soot. Black carbon causes human morbidity and premature mortality.

In climatology, black carbon is a climate forcing agent. Black carbon warms the Earth by absorbing sunlight and heating the atmosphere and by reducing albedo when deposited on snow and ice.

In the tropics, black carbon in soils significantly contributes to fertility as it is able to absorb important plant nutrients.

Solution: d)

UV-A rays can penetrate the middle layer of your skin or the dermis and can cause aging of skin cells and indirect damage to cells’ DNA. UV-C radiation from man-made sources has been known to cause skin burns and eye injuries.

UV-C radiation (wavelength around 254 nm) has been used for decades to disinfect the air in hospitals, laboratories, and also in water treatment. 

Solution: d)

WHO initiated the High Burden to High Impact (HBHI) initiative in some of the high malaria burden countries, including India.

Solution: c)

Reserved Forests:

• Reserve forests are the most restricted forests and are constituted by the State Governmenton any forest land or wasteland which is the property of the Government.
• In reserved forests, local people are prohibited, unless specifically allowed by a Forest Officer in the course of the settlement.
• The term was first introduced in the Indian Forest Act, 1927 in British India, to refer to certain forests granted protection under the British crown in British India, but not associated suzerainty.

Solution: d)

Alopecia areata is a condition that causes sudden hair loss in patches. The condition is developed after the immune system attacks the hair follicles, resulting in hair loss, which cannot be observed easily.

Not just the scalp, sudden hairfall may also occur in other parts of the body. “It can occur suddenly in any part of your body like the scalp, beard, moustache, underarms etc.

It may also develop slowly and occur again periodically or repeatedly after years between instances.

In this disorder, your own cells attack the hair and cause them to shed, forming clear patches of hair loss. It mostly occurs in people who have a family history of auto-immune conditions, such as diabetes and thyroid.