HOTs for Science Olympiad -5 - Class 4 MCQ

While sunlight is essential for many biological processes, it is not classified as a basic human need for survival. Air, water, and food are crucial for human existence.

Water plays roles in digestion, temperature regulation, and waste removal, but it does not purify the air we breathe.

Shelter protects from various external threats such as extreme weather conditions and potential dangers, ensuring safety and security for individuals.

Without water, the body cannot function properly, leading to dehydration and potential health complications.

In a blizzard, exposure to extreme cold without shelter can lead to frostbite and hypothermia, which are severe health risks.

The process shown is condensation. The vapour from the tea rises up and reaches the lid where it gets converted back to water droplets.

During summer, water kept in an earthen pot becomes cool because of the phenomenon of evaporation.