How do astronomers know which element is present where?
A. by looking for specific wavelengths...
Health, 24.03.2020 23:13 vanessa674
How do astronomers know which element is present where?
A. by looking for specific wavelengths of light that each element produces
B. by comparing the density of the gas to the densities of various elements
C. by measuring the temperature of each part of the gas
D. by observing chemical reactions taking place in the nebula
Answers: 3
Health, 23.06.2019 05:00, danielwu462
What nutrients prevent osteoporosis? a. all vitamins and minerals b. calcium, vitamins c, d, and k, and magnesium c. protein d. carbohydrates
Answers: 2
Mathematics, 20.04.2021 03:00
World Languages, 20.04.2021 03:00
Social Studies, 20.04.2021 03:00
Mathematics, 20.04.2021 03:00
Mathematics, 20.04.2021 03:00
Mathematics, 20.04.2021 03:00
Mathematics, 20.04.2021 03:00
Mathematics, 20.04.2021 03:00
Mathematics, 20.04.2021 03:00