The cosmic microwave background is:
A) redshifted in the direction of Earth's motion.
B) redshifted in the direction of the Sun's motion.
C) redshifted in the direction of the center of the Milky Way.
D) blueshifted in the direction of Earth's motion.
E) blueshifted in the direction of the Virgo Cluster.
Question 2
If the Sun were replaced by a one solar mass black hole:
A) all terrestrial planets would fall in immediately.
B) we would still orbit it in a period of one year.
C) we would immediately escape into deep space, driven out by its radiation.
D) our clocks would all stop.
E) life here would be unchanged.
Life on Earth
The Sun as it appears from the surface of the Earth at sunrise.
Layers are deposited parallel to Earth’s surface. Younger layers are deposited on top of older layer
Overview of lymphatic system structures and the general direction of lymph flow from the extremities ...
The rock cycle and the Earth’s physical environment
Long-wave energy flux is emitted from Earth