What change or transition in habitat did whales ancestors make?

Simple astronomical telescope the objective lens has a focal length of 75 cm and that of a piece of 5cm of the lenses are 18 cm apart when will be final image of a distant object before

East asia is considered a less developed nation. true or false

Which features do all new rocks formed near an oceanic ridge share? check all that apply. pillow-shaped striped pattern provide evidence to seafloor spreading made from molten material iron oriented in same direction