Explanation

George Tansley was an English botanist and a pioneer in the science of ecology

Explanation

An anemometer is an instrument that measures wind speed.

This type of anemometer has a spinning wheel.

Explanation

A bolometer is a device for measuring radiant heat by means of a material having a temperature-dependent electrical resistance.

Bolometer was invented in 1878 by Samuel Pierpont Langley (

Explanation

Robert Peary became the first person to reach the North Pole in 1909.

Robert Peary was an American explorer. 

The North Pole of the Earth is located in Arctic Ocean.

Distance from south to North Pole is called Longitude.

Explanation

Roald Amundsen was the first person/discover to reach the South Pole.

Roald Amundsen was from Norway. 

Explanation

Explanation

A real image is always formed below the principal axis, so these are inverted whereas a virtual image is always formed above the principal axis so these are always erect.

Explanation

Lavoisier was a French Chemist  

Jabbar bin Hayyan also known as father of chemistry 

Explanation

The intensity of earthquake is measured by Richter Scale.

Explanation

The word 'Geometry' is derived from an ancient Greek word 'geometron'. The word 'geo' means 'Earth' and 'metron' means 'measurement'.

Measurement of the Earth is called Geometry.