1. Which of the following rivers are tributaries of Krishna?
1. Bhima
2. Pravara
3. Malaprabha
Select the correct answer using the code given below:
(a) 1 and 2 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3

Explanation: Option (b) is correct
Krishna river rises in the Western Ghats at an elevation of about 1337 m. just north of Mahabaleswar, about 64 km from the Arabian Sea and flows for about 1400 km and outfalls into the Bay of Bengal. The principal tributaries joining Krishna are the Ghataprabha, the Malaprabha, the Bhima, the Tungabhadra and the Musi.

Pravara is a tributary of Godavari.

Source:
https://www.thehindu.com/todays-paper/heavy-inflow-into-the-krishna-still-causing-concern-in-belagavi/article35643712.ece

https://indiawris.gov.in/wiki/doku.php?id=krishna

2. Which of the following statements is/are correct about the Index of Eight Core Industries?
1. It is released by the Office of the Economic Adviser, Department for Promotion of Industry and Internal Trade.
2. The Eight Core Industries comprise over one third of the weight of items included in the Index of Industrial Production (IIP).
Select the correct answer using the code given below:
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

Explanation:
Statement 1 is correct: The Office of the Economic Adviser, Department for Promotion of Industry and Internal Trade is releasing Index of Eight Core Industries.

Statement 2 is correct: The Eight Core Industries comprise 40.27 per cent of the weight of items included in the Index of Industrial Production (IIP).

Source:
https://www.thehindu.com/todays-paper/tp-business/core-sectors-grew-89-in-june/article35643106.ece
https://pib.gov.in/PressReleasePage.aspx?PRID=1708714

3. “Cycle threshold (Ct) value” is most closely related to?
(a) Viral load of an infected person.
(b) Threshold speed for a spacecraft to enter into space.
(c) Threshold height in the atmosphere area above which is termed as “space”.
(d) The value of red blood cells in a person above which chance of becoming a successful athlete increases.

Explanation:Option (a) is correct
Experts rely on a number called the cycle threshold (Ct) value to indicate how much virus an infected person harbours, with lower numbers indicating higher viral load.

Source:
https://www.thehindu.com/todays-paper/tp-international/delta-variant-as-contagious-as-chicken-pox-cdc-document/article35643454.ece


4. With regard to Single Use Plastics, consider the following statements:
1. Single-use plastics are disposable plastics meant for use-and-throw.
2. India envisions becoming free of single-use plastic by 2030.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Explanation:
Statement 1 is correct: Single-use plastics are disposable plastics meant for use-and-throw. These comprise polythene bags, plastic drinking bottles, plastic bottle caps, food wrappers, plastic sachets, plastic wrappers, straws, stirrers and Styrofoam cups or plates.
According to World Wildlife Fund (WWF), plastic is harmful to the environment as it is non-biodegradable, takes years to disintegrate.Single-use plastics slowly and gradually break down into smaller pieces of plastic known as microplastics.
Statement 2 is incorrect:  India envisions to becoming single use plastic free by 2022.
Source: https://www.businesstoday.in/latest/economy-politics/story/single-use-plastic-ban-harm-the-environment-pm-modi-campaign-150-mahatma-gandhi-jayanti-232704-2019-10-02
https://www.thehindu.com/news/cities/chennai/single-use-plastics-back-in-use/article35642423.ece
 
5. “Pegasus” is a:
(a) Oscar winning movie
(b) Invasive plant species
(c) Spyware
(d) A breakthrough satellite technology
Explanation: Option (c) is correct
Pegasus is a spyware developed by NSO Group, an Israeli surveillance firm, that helps spies hack into phones. In 2019, when WhatsApp sued the firm in a U.S. court, the matter came to light. In July 2021, Amnesty International, along with 13 media outlets across the globe released a report on how the spyware was used to snoop hundreds of individuals, including Indians. While the NSO claims its spyware is sold only to governments, none of the nations have come forward to accept the claims.
Source:
https://www.thehindu.com/topic/pegasus-surveillance/