221. Paleontology is a branch of science that deals with the

A. behavior of animals
B. formation of new stars
C. origin and growth of plants
D. forms of life as revealed by fossils of animals or plants
✅ The correct answer is option D.
Paleontology is a branch of science that deals with the forms of life as revealed by fossils of animals or plants. Paleontology is the study of the history of life on Earth as based on fossils. Fossils are the remains of plants, animals, fungi, bacteria, and single-celled living things that have been replaced by rock material or impressions of organisms preserved in rock.

222. The member states of Benelux Economic Union are

A. Belgium, Netherlands, Luxembourg
B. Indonesia, Kuwait, Libya
C. Algeria, Bahrain, Comoros, Iraq
D. Guyana, Jamaica, Trinidad, Tobago
✅ The correct answer is option A.
The member states of Benelux Economic Union are Belgium, Netherlands, Luxembourg. The Benelux is an economic union in Western Europe. It includes three neighboring monarchies, Belgium, the Netherlands, and Luxembourg. They are in the north western European region between France and Germany. The name is formed from the beginning of each country’s name.

223. Microphone is used to convert

A. sound waves into electrical energy
B. sound waves into light rays
C. electrical energy into sound waves
D. sound waves into magnetic currents
✅ The correct answer is option A.
Microphone is used to convert sound waves into electrical energy. Microphones are a type of transducer – a device which converts energy from one form to another. Microphones convert acoustical energy (sound waves) into electrical energy (the audio signal). Different types of microphone have different ways of converting energy but they all share one thing in common: The diaphragm.

224. The official languages of the United Nations are

A. African, Chinese, English, French, German and Spanish
B. Arabic, Chinese, English, French, Russian and Spanish
C. Arabic, Japanese, Chinese, English, French and German
D. Chinese, English, French, Hindi, Japanese and Spanish
✅ The correct answer is option B.
The six official languages of the United Nations are:1. Arabic2. Chinese (Mandarin)3. English4. French5. Russian6. Spanish

225. Light Year is related to

A. energy
B. speed
C. distance
D. intensity
✅ The correct answer is option C.
Light Year is related to distance. A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km.

226. Study of life in outer space is known as

A. endbiology
B. exobiology
C. neobiology
D. enterbiology
✅ The correct answer is option B.
Study of life in outer space is known as exobiology. This branch of science deals with nature of possible life forms on other planets. It is understanding evolution, distribution, origin, and future of life beyond our Earth. There are a lot of ongoing researches going on about the potential of other life forms in the outer space.

227. When was table tennis introduced in Olympics?

A. 1896 at Athens
B. 1988 at Seoul
C. 1924 at Paris
D. 1924 at Seoul
✅ The correct answer is option B.
In 1988 at Seoul, table tennis introduced in Olympics. Table tennis is among the sports contested at the Summer Olympic Games. It was introduced at the 1988 Summer Olympics in Seoul, South Korea, where singles and doubles tournaments were held for both genders. The doubles events were dropped from the 2008 Summer Olympics program and replaced by team events.

228. Mount Everest was captured by Edmund Hillary and Tenzing Norgay in the year

A. 1951
B. 1952
C. 1953
D. 1954
✅ The correct answer is option C.
Mount Everest was captured by Edmund Hillary and Tenzing Norgay in the year 1953. Sherpa Tenzing Norgay stands on the summit of Everest on May 29, 1953 after he and Edmund Hillary became the first people to reach the highest point on Earth.

229. Hundred year war was fought between

A. France and England
B. Civil war in England
C. Greek and Persian forces
D. None of the above
✅ The correct answer is option A.
Hundred year war was fought between France and England during the late Middle Ages. It lasted 116 years from 1337 to 1453. The war started because Charles IV of France died in 1328 without an immediate male heir (i.e., a son or younger brother).