1 Paragraph 5 of this passage mainly tells about -
A the physical properties of minerals.
B
how to spot a diamond.
c determining how rare a diamond is.
I
D
how to test a diamond for value.

Oil rich countries in the middle east cover about 4% of earths total land area but prossess about 48% of the worlds known oil reserves what is the main reason for high concentration of reserves in this part of the world

Which one of the following bonds would you expect to be the most polar? a) b–h b) n–h c) p–h d) al–h e) c–h

If you are told to get 100 ml of stock solution to use to prepare smaller size sample for an experiment, which piece of glassware would you use?