1.
Which element has the highest melting point?
Correct Answer
B. Carbon
Explanation
Carbon has the highest melting point among the given elements. This is because carbon has a unique structure with strong covalent bonds between its atoms. These bonds require a significant amount of energy to break, resulting in a high melting point. Tungsten also has a very high melting point, but carbon surpasses it due to its strong bonding. Osmium and lead have lower melting points compared to carbon.
2.
Which is the most heaviest element?
Correct Answer
C. Osmium
Explanation
Osmium is the correct answer because it is the densest naturally occurring element and has the highest atomic number among the given options. It is twice as dense as lead and significantly denser than platinum and tungsten. Therefore, Osmium is considered the heaviest element among the given choices.
3.
What does Larnyx do?
Correct Answer
A. Links the throat to trachea
Explanation
The larynx is a part of the respiratory system and is commonly known as the voice box. It is located in the throat and functions to connect the throat to the trachea. The larynx contains the vocal cords, which play a crucial role in producing sound and speech. Therefore, the correct answer is "links the throat to trachea."
4.
Where has the Ozone hole appeared?
Correct Answer
C. Antarctica
Explanation
The correct answer is Antarctica. The ozone hole is a region in the Earth's stratosphere where the ozone layer has been significantly depleted. It is primarily located over Antarctica, although it can also extend over parts of neighboring countries such as Australia and New Zealand. The depletion of the ozone layer is mainly caused by human activities, such as the release of chlorofluorocarbons (CFCs) into the atmosphere.
5.
Which is the other name of Fern?
Correct Answer
A. NepHrolepis
Explanation
Nephrolepis is the correct answer because it is another name for Fern. Ferns are a type of vascular plant that reproduce via spores and do not produce flowers or seeds. Nephrolepis is a genus of ferns that includes popular houseplants like the Boston fern. Therefore, Nephrolepis is a synonym for Fern.
6.
Who was the fonder of mordern geology?
Correct Answer
D. Charles Lyell
Explanation
Charles Lyell is considered the founder of modern geology. He was a British geologist who played a crucial role in developing the concept of uniformitarianism, which states that geological processes occurring in the present are the same as those that occurred in the past. This idea challenged the prevailing belief in catastrophism and greatly influenced the understanding of Earth's history. Lyell's influential work, "Principles of Geology," provided a framework for studying and interpreting geological phenomena, making him a significant figure in the field of geology.
7.
What is Earth quake?
Correct Answer
B. Movement of tectonic plate
Explanation
Earthquakes occur due to the movement of tectonic plates, which are large sections of the Earth's crust that float on the semi-fluid asthenosphere below. These plates constantly shift and collide with each other, causing stress and pressure to build up along their boundaries. When this stress becomes too great, it is released in the form of seismic waves, resulting in an earthquake. Therefore, the correct answer is "Movement of tectonic plate."
8.
Whioch of the following is a flightless bird?
Correct Answer
B. Rhea
Explanation
The correct answer is Rhea. Rhea is a flightless bird native to South America. It is the largest bird in South America and belongs to the same family as ostriches and emus. Albatross, on the other hand, is a seabird known for its long wingspan and ability to fly long distances. Tarantula is not a bird at all, but a type of spider.
9.
By whom was the study of magnetism pioneered?
Correct Answer
C. William Gilbirth
Explanation
The study of magnetism was pioneered by William Gilbert. He was an English physician, physicist, and natural philosopher who is credited with conducting extensive research on magnetism and publishing his findings in the book "De Magnete" in 1600. Gilbert's work laid the foundation for the modern understanding of magnetism and his contributions are highly regarded in the field.
10.
Who seperated medicine from magic?
Correct Answer
C. Hippocrates
Explanation
Hippocrates is the correct answer because he is known as the "Father of Medicine" and is credited with separating medicine from magical and religious beliefs. He emphasized the importance of observation, clinical experience, and rational thinking in diagnosing and treating illnesses, laying the foundation for modern medicine. Socrates and Plato were philosophers, not medical practitioners, and Hygiea was the Greek goddess of health and cleanliness.