The stars found in nebulae like the Orion Nebula probably formed
A) within the last few million years.
B) about 10 million years ago.
C) hundreds of millions of years ago.
D) billions of years ago.
E) at the beginning of the universe.
Question 2
What two energy transport mechanisms, in order from outside the core to the surface, are found in the Sun?
A) convection, conduction
B) radiative diffusion, convection
C) conduction, radiative diffusion
D) radiative diffusion, conduction
E) conduction, convection
Synthesis of the active hormone formed from vitamin D or its precursor in skin.
A giant squid found at Ranheim in Trondheim 2 October 1954
Campylobacter bacteria are found in most chicken meat. If chicken meat is not well cooked or raw mea
Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo
Stars and constellations
The formed elements of blood.