The layer of the earth that is composed of rock, yet flows due to extreme heat and pressure, is known as the
crust
upper mantle
outer core
asthenosphere

Compare the quantity in column a with the quantity in column b. pa p a is tangent to the circle at a. column a column b ap a p ax a x question 4 options: the two quantities are equal. the quantity in column a is greater. the relationship cannot be determined from the information given. the quantity in column b is greater.