- The most abundant metal in the earth’s crust is:
- Day and night changes due to:
- Earth is divided into following three layers?
- Literally the word ethics stand for :
- “Crust” is earth’s:
- which rocks make the earth’s surface or crust:
- Which of the following is associated with Einstein?
- Stainless steel is the alloy of:
- The first Chief of Staff of Pak Army was?
- What is the most abundant element in the universe?