The element which is the building block of all living things is (a) oxygen (b) carbon (c) nitrogen (d) phosphorus.

in addition to spreading humanist ideas, erasmus has contributed to criticism of corruption in the church.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.