The dark maria on the moon are
A) layers of dark meteoritic debris from impacts
B) layers of darker rock just beneath the surface which have been uncovered by impacts
C) huge impact basins filled in by lava flows
D) oceans of liquid water covering the surface
Question 2
If the inductance and the capacitance both double in an LRC series circuit, the resonant frequency of that circuit will
A) decrease to one-half its original value.
B) decrease to one-fourth its original value.
C) decrease to one-eighth its original value.
D) increase to twice its original value.
E) increase to four times its original value.
Luna, the Moon, from a 1550 edition of Guido Bonatti's Liber astronomiae.
A crescent Moon and "star"
Enceladus (Saturn's Moon)
Ellsworth Kelly, Three Panels: Orange, Dark Gray, Green.
The three layers of the skin.
Five layers or sheaths called koshas in Ayurvedic philosophy.