Explanation

 Twice is used as Adverb

An adverb is a part of speech that provides greater description to a verb, adjective or another adverb.

Explanation

12 men took to 6 hours to complete the work.

It means there is 12 x 6= 72 units of work

Now 12men done work for one hour. So 12 x 1 =12 units of work completed.

Remaining work = 72-12= 60 units

Now the no of men=12+8= 20

So 60 units of work have to complete by 20 men

Therefore 60/20= 3 hours

Explanation

8 men can do work = 20 days 

1 man can do this work = 8*20

10 men can do that work = [8*20]/10

                                              =16 days 

Explanation

 Liu Bang, was the founder and first emperor of the Han dynasty, reigning in 202–195 BC.

Explanation

Febriphobia is the fear of fever.

while

Aerophobia is an extreme fear of flying.

Laliophobia is a fear of speaking

Nyctophobia is the fear of  Darkness.

Anthophobia is the fear of flora.

Heliophobia is the fear of the Sun, sunlight, or any bright light.

Hemophobia, or blood phobia, 

Explanation

Answer

c

The Amazon River in  South America

 The Amazon River is 3,980 miles (6,400 kilometers) long, according to the U.S. National Park Service. It is, however, the world`s largest river by volume and contains 20 percent of the Earth's freshwater, according to the National Science Foundation

Explanation

Answer:

C

two hundred calories

A cup of white rice has approximately two hundred calories now no longer insignificant, thinking about it`s most customarily used as a small part of a bigger dish.

Explanation

Vitamin B12 is naturally present in foods of animal origin, including fish, meat, poultry, eggs, and dairy products.

Explanation

Scurvy is a state of dietary deficiency of vitamin C (ascorbic acid).

The human body lacks the ability to synthesize and make vitamin C

Depends on exogenous dietary sources to meet vitamin C needs. 

Explanation