There are many measurements of time based on events in nature. Which event best describes the length of one month?
A. The time it takes Earth to spin on tig on its axis.
B. The time it takes for the Moon to orbit Earth once.
C. The time it takes for Earth to travel around the Sun once.
D. The time it takes for the Sun to rise in the east and set in the west.

Asap! ! ! ! true or false the gobi desert, the largest desert in asia. covers parts of northern china and southern russia

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks

Pythagorean theorem what is the value of x? x = 2 sides are 8 and 10