Understand the science behind daily life through questions covering health, energy, environment, inventions and natural phenomena.
Questions are tracked as practiced when you open Show Answer & Explanation. Tracking stays only in this browser tab and no subject-test result is saved.
Which part of the nervous system is called the automatic system and controls involuntary body functions like digestion?
Which tiny blood vessels allow the exchange of oxygen nutrients and waste between blood and body tissues?
Which medical imaging technique uses high frequency sound waves to visualise internal organs?
Which scientist developed the process of pasteurization and contributed significantly to the germ theory of disease?
Which common acid is found in citrus fruits like lemons and oranges giving them a sour taste?
Which astronomical event marks the day with the longest period of daylight in the Northern Hemisphere?
Which part of the human brain regulates vital involuntary functions such as breathing and heartbeat?
Which vitamin is important for wound healing?
Which part of the human ear is primarily responsible for maintaining balance?
Which photoreceptor cells in the eye are responsible for colour vision and function best in bright light?
The process of breakdown of complex food molecules into simpler ones is called:
Which vitamin helps in blood clotting?
Which gas commonly used in refrigerators and air conditioners was historically linked to ozone layer depletion?
The process of removing salt from seawater to make it drinkable is called:
Which part of the human body regulates temperature through sweating and blood vessel dilation?
Which white blood cell type is the most abundant and primarily fights bacterial infections?
Which common preventive health practice helps reduce the transmission of airborne respiratory infections?
Which common everyday substance is used to test for the presence of glucose in food and turns brick-red when heated?
Which everyday device converts direct current into alternating current for household appliance use?
Which type of lens is used to correct myopia or nearsightedness?