Beaver
Beavers are one of the wonderful animals that are best known for building dams in rivers. These dams are very helpful for holding the water in forests and grasslands. Beavers ...
Isotherms
The temperature of a region is usually taken as a whole to find out how that area feels, e.g. hot or cold. However, the temperature in a region is not ...
Pen & Pencil
Since prehistoric times, humans have tried to mark their stories and presence with the help of some tools. In ancient times, people used the techniques of engraving or etching their ...