<span><span><span>Understanding the nature and appearance of our galaxy is no small feat, for we live within a disk of obscuring gas and dust.Astronomers do not think that a supermassive black hole at the center of a galaxy is unique to the Milky Way. Rather, it appears to be quite typical of the almost innumerable galaxies in the observable universe. The fact that black holes may be the rule rather than the exception makes it even more important that we continue to study them.</span> </span><span> <span> </span></span></span>
Protons: positive
neutrons: no charge
electrons: negative
<h3><u>Answer;</u></h3>
<em>A. continental-oceanic convergent</em>
<h3><u>Explanation;</u></h3>
- <em><u>A convergent boundary</u></em> is a type of boundary where two plates collide and push against one another.
- <em><u>A continental-oceanic convergent</u></em> is a type of convergent boundary that occurs as a result of <em><u>subduction.</u></em> <em><u>Subduction occurs where a continental plate collide thus resulting to the oceanic plate being pushed underneath the continental plate</u></em> into the mantle since the oceanic plates are much thinner.
- The result is that <em><u>the oceanic plates melts into hot magma which that burns its way up through the continental plate</u></em> forming a volcano and also causing earth quakes.
Answer:
True
Explanation:
The peak of Mount Everest is made up of rock that was once submerged beneath the Tethys Sea, an open waterway that existed between the Indian subcontinent and Asia over 400 million years ago.
The answer is; a high neutron-proton ratio
Isotopes have the same number of protons (atomic number) but differ in the number of neutrons (hence also in their mass numbers). Isotopes are named according to their mass numbers; example carbon-12, and carbon-14. Their atomic numbers remain as 6 but neutron numbers differ (6 and 8).
