Explanation

The UK, US, Germany, France, Canada, Italy and Japan make up the G7.

Explanation

• Avg of 6 numbers = 30
• Sum of 6 numbers = 6 x 30 = 180
• Avg of first 4 numbers = 25
• Sum of first 4 numbers = 4 x 25 = 100
• Avg of last 3 numbers = 35
• Sum of last 3 numbers = 3 x 35 = 105
• Now, let's find the 4th number:
• Sum of first 3 numbers = Sum of first 4 numbers - 4th number
• = 100 - 4th number
• Sum of first 3 numbers = Sum of all 6 numbers - Sum of last 3 numbers
• = 180 - 105
• = 75
• So, 75 = 100 - 4th number
• 4th number = 100 - 75
• = 25

Explanation

United States of America (USA) shifted its embassy from Tel Aviv to Jerusalem (Israel) in 2018, under the then president Donald Trump administration. 

Explanation

All electromagnetic waves travel at the same speed through empty space

Electromagnetic waves are formed between electrical and magnetic fields due to vibrations.

Electromagnetic waves travel with the speed of light in free space.

The speed of light is  3*10^8 m/s

Hence, Electromagnetic waves travel at the speed of 3*10^8 m/s.

Explanation

Cold Start is a military doctrine that was developed by the Indian Armed Forces for use in a possible war with Pakistan.

The doctrine is intended to allow India's conventional forces to perform holding attacks to prevent a nuclear retaliation from Pakistan in case of a conflict.

ND6-08-2023

Explanation

JWST was launched into space on 25 December 2021.

NASA launched James Webb Space Telescope in the year 2021

The world’s largest and most powerful space telescope “James Webb Space Telescope” 

Launch site: Guiana Space Centre

Explanation

When fossil fuels are burned,

they release large amounts of carbon dioxide,

a greenhouse gas, into the air

.ND18-5-2023

Explanation

Diamond is composed of the single element carbon, 

 it is the arrangement of the C atoms in the lattice that give a diamond amazing properties.

MUG 11-12-2022

ND5-07-2023

Explanation

On 23 December 2021, Belgium declared to shut down its nuclear power plants by 2025.

The Doel 4 and Tihange 3 reactors - the newest of Belgium's seven reactors - were due to close for good in 2025

'but will now restart in November 2026 after necessary work and will continue operating for 10 years.

Explanation

The equator passes through 13 countries:

1.      Ecuador,

2.      Colombia,

3.      Brazil,

4.      Sao Tome & Principe,

5.      Gabon,

6.      Republic of the Congo,

7.      Democratic Republic of the Congo,

8.      Uganda,

9.      Kenya,

10.  Somalia,

11.  Maldives,

12.               Indonesia

13.               Kiribati.

ND5-07-2023