We know Mercury must have a large metal core because it has a high density.
Indicate whether the statement is true or false
Question 2
In the unified model of active galactic nuclei, the broad line region in an active galactic nucleus is
a. composed of clouds of gas and stars moving at very high orbital velocities near a supermassive black hole.
b. composed of a super massive black hole surrounded with empty space
c. responsible for producing the bright continuous radiation from within the event horizon.
d. responsible for the narrow absorption lines seen in Type 2 Seyfert galaxies.
e. located far from the core beyond the disk of stars of the galaxy
The rotifer, Brachionus calyciflorus, is a large predator that consumes the smaller algae, Chlorella
The American Lion was one of the abundant Pleistocene megafauna, a wide variety of very large mammal
Ardipithecus kadabba has large canine teeth that are only slightly smaller than those of living apes
Fertility and Population Density, 1850
Physics - Density, Pressure, and Pascal's Principle
Physics - Pressure, Density, Pascal's Principle