Biology, 21.03.2020 03:07 spooderfaxy7813
He following image is a picture of the Veil Nebula made by combining several photos taken by the Hubble orbiting telescope.
The colors in the picture indicate the different elements present: blue is oxygen, green is sulfur, and red is hydrogen.
How do astronomers know which element is present where?
A. by observing chemical reactions taking place in the nebula.
B. by measuring the temperature of each part of the gas.
C. by comparing the density of the gas to the densities of various elements.
D. by looking for specific wavelengths of light that each element produces.
Answers: 3
Biology, 21.06.2019 22:00
What is thought to have caused the mass extinction at the end of the cretaceous period?
Answers: 1
Biology, 22.06.2019 07:30
Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables
Answers: 3
Biology, 22.06.2019 07:30
Paint and solvents pose no potential hazard to human health. select the best answer from the choices provided t f
Answers: 3
He following image is a picture of the Veil Nebula made by combining several photos taken by the Hub...
Mathematics, 07.12.2020 03:00
Mathematics, 07.12.2020 03:00
Biology, 07.12.2020 03:00
Social Studies, 07.12.2020 03:00
Health, 07.12.2020 03:00
Chemistry, 07.12.2020 03:00
Mathematics, 07.12.2020 03:00
World Languages, 07.12.2020 03:00