How many birds in 10 oranges? and maybe even the other questions as well!

Which metal exist in liquid state and can be cut with knife ?

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold