ASTRONOMY HELP!! STAR CHARACTER :
1. The power output at the source is A. Flux, B. Luminosity,...
Geography, 17.04.2020 22:55 shriyasoni150
ASTRONOMY HELP!! STAR CHARACTER :
1. The power output at the source is A. Flux, B. Luminosity, C. Apparent brightness.
2. Flux from a source depends on A. its luminosity, B. the area over which the observer receives, C. both A and B.
3. The distance at which a star's parallax is one arc second is called A. a parsec, B. a Light Year, C. stellax.
4. The light flowing through the surface of a star is related to A. its surface temperature, B. its mass, C. its age, D. all of the above.
5. The continuous spectrum peak wavelength gives us the surface temperature by Boltzmann's Law, B. Wien's Law, C. the Law of Temperature.
The sun's temperature-color (spectral) classification A. O, B. A, C. G, D. M.
Answers: 2
Geography, 22.06.2019 13:00
Why would the crystals in an intrusive igneous rock be larger than the crystals in a chemical sedimentary rock? a. intrusive rocks form beneath the earth's surface, so they cool very slowly, which produces larger crystals. b. chemical sedimentary rocks form from dissolved substances on the earth's surface with very high heat and cool very slowly, which produces smaller crystals. c. chemical sedimentary rocks and intrusive rocks have crystals of the same size. o d. chemical sedimentary rocks form deep in the earth, so they cool slower, which produces small crystals. € read question correct:
Answers: 3
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Match your vocabulary word to its definition. 1. emigration 2. immigration 3. migration 4. overpopulation 5. sustainable development 6. under population 7. unsustainable development 8. urbanization the movement from one place to another the number of people exceeds the available natural resources in an area leaving one's homeland to settle in a new place the increase in the population of a city the movement of people to a new country the ability to meet current needs without reducing the ability to meet future needs resources being used up at a faster rate than they can be replenished birth rate insufficient to replace the existing population
Answers: 3
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