Which type of glass used in making lenses and prism ?

8 years ago

A. Pyrex glass B. jena glass C. Flintglass D. Soft glass

The Coldest months in Australia is ________ ?

8 years ago

A. December and January B. February and March C. July and August D. April and May

The weight of human adults brain is ________ ?

8 years ago

A. 1200 – 1300 gm B. 1600 – 2000 gm C. 500 – 800 gm D. 100 – 200 gm