Top 500 General Science GK Questions

Correct Answer : A
Explanation :
Itai-itai disease is caused by cadmium (Cd) exposure, produced as a result of human activities related to industrialisation, and this condition was first recognised in Japan in the 1960s.

Correct Answer : A
Explanation :

Evolution and diversity result from the interactions between organisms and their environments and the consequences of these interactions over long periods of time. Organisms continually adapt to their environments, and the diversity of environments that exists promotes a diversity of organisms adapted to them.

Correct Answer : A
Explanation :
Iris regulates the amount of light entering the eye by adjusting its size. Iris is a thin membrane, which controls pupil which in turn regulates the amount of light entering the eye.

Correct Answer : B
Explanation :

Photosynthesis is the process in which green plants use sunlight, along with water and carbon dioxide to make their own food. Oxygen and glucose are the by-products of photosynthesis.

Correct Answer : C
Explanation :

Yams, beets, parsnips, turnips, rutabagas, carrots, yuca, kohlrabi, onions, garlic, celery root (or celeriac), horseradish, daikon, turmeric, jicama, Jerusalem artichokes, radishes, and ginger are all considered roots. Because root vegetables grow underground, they absorb a great amount of nutrients from the soil.

Correct Answer : A
Explanation :
As the only cell which does not contain or have the mitochondria is the red blood cell. Red blood cell does not contain organelles like nucleus and mitochondria.

Correct Answer : B
Explanation :
A normal resting heart rate should be between 60 to 100 beats per minute, but it can vary from minute to minute. Your age and general health can also affect your pulse rate, so it's important to remember that a 'normal' pulse can vary from person to person.

Correct Answer : A
Explanation :

Apple contains an enzyme known as polyphenol oxidase (PPO). This enzyme when comes in contact with oxygen molecules oxidized polyphenols into o-quinones. These o-quinones thus form reacts with the neighboring amino acids to produce melanins.

Correct Answer : A
Explanation :

Your pituitary gland is located at the base of your brain, behind the bridge of your nose and directly below your hypothalamus.

Correct Answer : D
Explanation :
Myxedema is the result of having undiagnosed or untreated severe hypothyroidism. The term “myxedema” can mean severely advanced hypothyroidism. But it's also used to describe skin changes in someone with severely advanced hypothyroidism.