The correct matches are:
1. Hadean eon - Formation of the Solar System;
2. Archean eon - Toxic atmosphere; first bacteria;
3. Proterozoic eon - buildup of oxygen; first eukaryotes;
4. Phanerozoic eon - Current eon;
5. Paleozoic era - Largest mass extinction in Earth's history;
6. Mesozoic era - Time of the dinosaurs;
7. Cenozoic era - Sometimes called ''Age of Mammals'';
A) Bangladesh was formed as a result of partitioning India
Answer:
From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star. The spectral line also can tell us about any magnetic field of the star. The width of the line can tell us how fast the material is moving.
Explanation:
Hopefully this helps :)
Brainiest please?? I need 5 more to reach a new level
The answer is:
It was used to plot latitude using the sun.
The astrolabe was a device used by the seafarers or the captain at sea in order to calculate the latitude of the ship, by measuring the angle between the horizon and the sun. In the past, this was mostly used by the astronomers and navigators to measure the inclined position in the sky of a celestial body, day or night.
Continental tropical i think is the right answer sorry if im wrong i hope this helps