Can someone pls help Which one of these statements about the Sahara Desert is not true?

A) Few plants grow there.

B) It covers most of northern Africa.

C) Very little rain falls there.

D) It is always hot there.

An object weighs 40n in air , weighs 20n when submerged jn water and 30n submerged in a liquid of unknown density .what is the density of the liquid?

What is the relationship between surface winds in the northern and southern hemisphere?

Identify the constitutional principle that is common in both this excerpt and federalist no. 51. based on the constitutional principle identified in part (a), explain how the perspective in this excerpt compares with the perspective in federalist no. 51. explain how the constitutional principle identified in part (a) is reflected in the constitution, including two examples to explain how it affects the u. s. political system