Explanation

8: 200*100 = (8*100): 200 = 800: 200 = 4

Explanation

 Yoshihide Suga served as prime minister of Japan from 16 September 2020 to 4 October 2021.

Explanation

Passive voice: Did you do it on purpose?

Active voice: Was it done by you on purpose

 (was /were) + subject + V3 + Optional Agents.

Explanation

The International Monetary Fund has proposed a $50 billion global vaccination plan for the world,

which aims to vaccinate at least 40% of the global population by the end of the year 2021.

The proposal for $50 billion is expected to be in the form of grants, Governmental resources, and concessional financing.

Explanation

Rickets is a disorder that causes children to have bones that are weak and soft.

Rickets is caused by a lack of vitamin D in the body

Explanation

A child has just 20 teeth

Most kids have their first set of teeth by the time they are 3 years old.

These are called the primary teeth, baby teeth, or milk teeth 

Explanation

The Congress of Vienna of 1814–1815 was a series of international diplomatic meetings

The Congress of Vienna began in September 1814, five months after Napoleon I’s first abdication

The Congress of Vienna completed its “Final Act” in June 1815, shortly before the Waterloo campaign and the final defeat of Napoleon.

Participants:

1. Austria
2. France
3. Portugal
4. Prussia
5. Russia
6. Spain
7. Sweden
8. United Kingdom 

ND07-3-2023

Explanation

polarimeter detects whether one or both enantiomers are present in a sample.

It consists of:

a light source

a polarizer

a sample cell

a detector

an analyzer.

Explanation

= (5x60)+(10x30)+(15x20) / 30

= 30

Explanation

Fractional distillation separates miscible liquids that have different boiling points.

It is useful for separating ethanol from a mixture of ethanol and water,

and for separating crude oil into different products such as petrol, diesel, and kerosene.