The pattern is:

Hence, option B is the correct answer.

On checking option A

11 ÷ 9 – 63 + 7 × 2

After interchange sign

11 + 9 – 63 ÷ 7 × 2 = 2

20 – 18 = 2

2 = 2

Hence, Option A is the correct answer.

 The logical order is:

5. Switch on television, 1. Television audio defect, 3. Contact mechanic, 4. Television repair done, 2. Restart enjoying.

Hence, the correct response is option B.

Let initial radius be 10 cm

Area = π x r²

π x (10)² = 100 π

New radius after diminishing = 10 – 20% of 10 = 8

New Area = π x (8)² = 64 π

According to the question, The ratio of the volume of Cylinders -

Calculating slant height, l = =  = 17

Total surface area = Πrl + Πr²

= Π×8(17+8)

= 200Π cm²

• As per the data of IAEA and USGS, largest reserves of thorium in the world are found in India which has around 25% of the world reserves.

• Thorium deposit found in monzanite sand which is found abundantly in western part of Kerala and also in Godawari Krishna Basin.

• Thorium is a vital radioactive element and recognised as important substance with reference to 3^rd phase of development of Nuclear Energy production.

* The Centre for Science and Environment (CSE) has released the "State of Environment Report 2021" on February 25, 2021.

* The report highlighted how the Covid-19 pandemic will impact the children across world.

* As per the report, the best performing states are Kerala, Himachal Pradesh, Andhra Pradesh, Tamil Nadu and Telangana.

* The worst performing states are Bihar, Jharkhand, Arunachal Pradesh, Meghalaya and Uttar Pradesh.

* Thr Centre for Science and Environment (CSE) is a not-for-profit public interest research and advocacy organisation.

* It is headquartered in New Delhi.

* It was established in 1980.

● Bill and Melinda Gates foundation confers the ‘Global Goalkeeper Awards’.

● This award was conferred to Prime Minister Narendra Modi for the Swachh Bharat Abhiyan.

● The award ceremony took place at the United Nations General Assembly session in New York.