What can you infer from the text as to the reason why Antarctica has no permanent residents?

Ahill is made of rock particles of different sizes. which of these agents of erosion probably caused the hill to form?

Lee is creating a garden with the dimensions shown. he creates paths through the garden along , , and . which correctly compares the lengths of the paths? the path along is longer than the path along , and the path along is longer than the path along . the path along is longer than the path along , and the path along is longer than the path along . the path along is longer than the path along , and the path along is longer than the path along . the path along is longer than the path along , and the path along is longer than the path along .

According to the earth science reference tables, during which geologic time period were the continents of north america, south america, and africa closest together?