What are the relative ages of the heavily cratered Southern highlands and the smooth Northern plains of Mars?
A) the highlands and the plains are the same age
B) it is impossible to tell unless we know the specific geological processes that occurred in each hemisphere
C) the plains are older than the highlands
D) the highlands are older than the plains
Question 2
The semi-major axis, a, of an elliptical planetary orbit is equal to the
A) width of the ellipse
B) distance between the planet and the Sun at perihelion
C) average distance between the planet and the Sun
D) distance between the planets and the Sun at aphelion
Smooth Sumac
How to reflect the quadratic function relative to the x-axis
Red blood cells with normal hemoglobin, like the three similar ones, are smooth and round