Learn the basics about quarrying, its economic advantages and disadvantages concerning environment and healthy living. What is quarrying? and how does it affect us and our environment? Find out more in this video!

In this video, the teacher presents a quick revision of the various components of the environment and the four spheres. The viewers are then given an activity to find the odd man out and state the reason.

Learn the basics about Quarrying, its economic advantages and disadvantages concerning environment and healthy living.

A conversation with John Hogan, an environmental scientist at the bioengineering branch at NASA’s Ames Research Center.