Answer:
The spectral types and sub-classes represent a temperature sequence, from hotter (O stars) to cooler (M stars), and from hotter (subclass 0) to cooler (subclass 9). The temperature defines the star's "color" and surface brightness. ... Stars are also classified by luminosity class.
Explanation:
At the divergent plate boundaries new oceanic lithosphere is formed in the gaps of magma coming up from the mantle. The magma coming up forms mid-ocean ridges. They form along mountain chains that are marked as boundaries between diverging plates.
Answer:
(A) galaxies formed Sometime after the first five minutes
(B) antielectrons (positrons) as common as electrons Within the first five minutes
(C) photons of cosmic microwave background released Sometime after the first five minutes
(D) temperature fell to 10^15 K(E) strong force and electroweak force first became distinct Within the first five minutes
(F) carbon nuclei formed by fusion Sometime after the first five minutes
(G) inflation occurred Within the first five minutes
(H) star formed Sometime after the first five minutes
Answer:
Bathymetry
Explanation:
Bathymetry is the study of underwater depth of ocean floors or lake floors. Basically bathymetry is the underwater equivalent to topography
