Answer:
1. Galileo.
2. Newton.
3. Kepler.
4. Brahe.
5. Refracting telescope.
6. Reflecting telescope.
7. Astrolabe
8. Camera.
9. Radio telescope.
Explanation:
1. Galileo: he discovered details of a lunar surface.
2. Newton: he invented first reflecting telescope.
3. Kepler: he found planets had elliptical orbits.
4. Brahe: he performed a systematic mapping of sky.
5. Refracting telescope: uses a large glass lens.
6. Reflecting telescope: uses a mirror to focus light.
7. Astrolabe: tool used to determine location of a star.
8. Camera: instrument that accumulates light from an object to show more detail.
9. Radio telescope: records sounds of stars.
The rio grande river starts in the san juan mountains in colorado and continues 1,901 miles to the gulf of mexico.
[Density]
Density determines waters vertical position in the ocean using temperature and salinity. Lower temperature waters are more denser than higher temperature waters. Also, low salinity waters are lower density than higher salinity waters
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1:the malanesian islands ,which include the papua New guinea
Which is closer to australia
It is done so that the soil of farms is not used for only one set of nutrients. It helps in reducing soil erosion and increases soil fertility and crop yield.
