Answer:
tightly packed group of older stars
large grouping of more than two stars
loose, disorganized star cluster held together by gravity
Answer:
The greater the amount of silica in magma, the more viscous the magma is. The magma thus solidifies quicker as well.
The subtropical jet streams formate from cool and warm air masses that meet near the equator (close to the 30* Latitude).
Answer:
The true statement is - Sympatric speciation only occurs in areas where there is local variation in environmental resources
Explanation:
- Sympatric speciation means the evolution of new species from an ancestor species which are occupying in the same area and no geographical barrier takes place.
- Overlapping of ranges takes place to the organism and old and new species are living i the same geographical region.
- A dam diving a fish population could lead to allopatric speciation where geographical barrier causes formation of new species which are completely different from their ancestor species.
The p<span>leistocene</span>is the most recent epoch of repeated glaciation on the earth.
-Hope this helps.
