Daily Current Affair Quiz: 12th May 2020

by Mentors4ias · May 12, 2020

1. Which of the following statements are true?

1. Biological Weapons Convention (BWC) was the first multilateral disarmament treaty banning the development, production and stockpiling of an entire category of weapons of mass destruction.

2. India is not a party to the convention.

(a) 1 only

(b) 2 only

(d) Neither 1 nor 2

Ans: a

Justification:

It was the first multilateral disarmament treaty banning the development, production and stockpiling of an entire category of weapons of mass destruction. \ It entered into force on March 26, 1975.
It currently has 183 states-parties. India signed the convention in 1973 and ratified it in 1974.

2. Hantaviruses are a family of viruses spread mainly by

(a) Rodents

(b) Bats

(d) Mosquito

Ans: a

Justification:

Recently, a man from China’s Yunnan province died from Hantavirus. Hantaviruses are a family of viruses spread mainly by rodents and can cause varied disease syndromes in people.
Hantaviruses in the Americas are known as “New World” hantaviruses and may cause hantavirus pulmonary syndrome (HPS).

3. Which of the following statement/s is/are true?

1. Methane is the second most important greenhouse gas and 26 times more potent as compared to carbon-di-oxide.

2. Rice fields contribute to nearly 10% of global methane emissions.

(a) 1 only

(b) 2 only

(d) Neither 1 nor 2

Ans: c

Justification:

Rice fields are waterlogged and anaerobic degradation of organic matter results in the generation of methane. They contribute to nearly 10% of global methane emissions.
Methane is the second most important greenhouse gas (after CO2) and 26 times more potent as compared to carbon-di-oxide. In rice fields, methanotrophs are active near the roots or soilwater interfaces.
Methane oxidizing bacteria (methanotrophs) grow on methane as their sole source of carbon and energy.
Scientists at Agharkar Research Institute (ARI), Pune have isolated 45 different strains of methanotrophic bacteria.

4. Which of the following statement/s is/are true?

1. Sodium Hypochlorite is a compound used for water purification.

2. It is largely used for surface purification, bleaching, odour removal and water disinfection.

(a) 1 only

(b) 2 only

(d) Neither 1 nor 2

Ans: c

Justification:

It is a compound used for water purification and largely for surface purification, bleaching, odour removal and water disinfection.
It is used on a large scale in agriculture, chemical industries, paint- and lime industries, food industries, glass industries, paper industries, pharmaceutical industries, synthetics industries and waste disposal industries.

5. Which of the following Countries have shorelines along the Black Sea?

1. Indonesia

2. South Korea

3. Taiwan

(a) 1 and 2 only

(b) 1 and 3 only

(d) 1,2 and 3

Ans: b

Justification:

Geographically, the South China Sea plays a significant role in the geopolitics of the Indo-Pacific. The South China Sea is bordered by Brunei, Cambodia, China, Indonesia, Malaysia, the PhilippinesSingapore, Taiwan, Thailand and Vietnam.