Explanation

"As far as I know, she is sick" is correct and commonly used. It means that based on the information you have, you believe she is sick.

"In my opinion, she is sick" is also correct. It expresses your personal belief or judgment.

So, the correct and more natural options are:

B) As far as I know, she is sick.

C) In my opinion, she is sick.

Explanation

Vexillology is the study of flags.

 Vexillology comes from the Latin word vexilla "little sail" for flag.

Vexillology means جھنڈوں کا مطالعہ

Explanation

incorrect: Choose the correct sentence. If the sky falls, we shall catch larks

correct: If the sky falls, we shall catch larks

This is a Conditional Sentence. 

Rule: If + other words (in present tense), subject + shall + first form of a verb object.

Explanation

glucose is the common monomer of carbohydrates.

Carbohydrate helps in providing energy to the body mainly through glucose.

Explanation

incorrect: Can you give me an information?

correct:  Can you give me some information?

The word information does not take any article.

Some information and a piece of information, both are correct. 

Explanation

In February 2021, Germany declined the license to two firms planning the export of small arms to India due to the Indian army’s poor human rights record in Indian Illegally Occupied Jammu and Kashmir (IIOJ&K).

Though Germany is India’s sixth-largest trading partner

and its largest trading partner from the European Union, it feared that its small arms could be used against the civilian population in IIOJK.

Explanation

incorrect: A third of the prisoners is from Spain

correct: A third of the prisoners are from Spain

Generally, a third of something takes a singular noun/verb.

Explanation

Accepted proposal: rejected proposal

75%:25%

75/25:25/25

3:1

Explanation

Let the total number of workers be x. Then,

8000x = (12000 * 7) + 6000(x – 7)

=>x=420002000

$x=\frac{42000}{2000}$ 

Answer = 21

Explanation

 Morphology in Biology  Study of the form and structure of animals and plants

The field of morphology was developed by Johann Wolfgang von Goethe (1790) and independently by the German anatomist and physiologist Karl Friedrich Burdach (1800).

while

Morphology in linguists deals with the Study of the formation of words.

The term was first used in linguistics by August Schleicher in 1859