Questions

Assessing opportunity cost involves making choices and dealing with consequences.

Magnetism in materials is due to circular motion of electrons.

The required number is SEVEN.

If you remove  S, it becomes EVEN.

China blocked wikipedia in all languages recently in May 2019.

Allows for expansion or contraction of the trachea. Hence, so large masses of food can pass through the esophagus during swallowing.

Among the Indian cities Chandigarh is known as City of Roses.

Space Applications Centre (SAC) is one of the major centres of the Indian Space Research Organisation (ISRO) which is located in Ahmadabad.

SAC focuses on the design of space-borne instruments for ISRO missions and development and operationalisation of applications of space technology for societal benefits. The applications cover communication, broadcasting, navigation, disaster monitoring, meteorology, oceanography, environment monitoring and natural resources survey.

Romans (753 BC - AD 410) began public health and sanitation systems.

Romans established the first public health and sanitation systems by building sewers and aqueducts.

They also treated diseases with diet, exercise and meditation.