Questions

Mortar is a mixture of cement or lime as a binder, sand and water.

214 BC

When moon's orbit is closest to earth is called as Perigee.

The distance between the Moon and Earth varies throughout the month and the year since the moon's orbit around the earth is elliptical. The distance is about 382,900 kilometers from the Moon's center to the center of Earth.

Hence, the point on the Moon's orbit closest to Earth is called the perigee.

Anemometer is the instrument that is used for measuring the speed of wind or any gas currents.

The genetic material of HIV consists of two single stranded RNA molecules.

Medical Sociology is the systematic study of how humans manage their health problems, wellness and disorders and how they overcome sick to be healthy.