Geography, 11.02.2020 00:53, newyorkvincetti
If you heat up a bar of iron in a fire until it glows, the light emitted from the iron is caused by ?
a. an increase in the atomic number of the iron atoms
b. a reorganization of protons and neutrons in the atomic nucleus
c. a chemical reaction with oxygen free radicals in the air
d. residual fire that is stuck to the metal
e. high energy electrons dropping back into a lower-energy shell
Answers: 2
Geography, 23.06.2019 18:30, floresguppy
What are two australian geographical features that hindered early exploration? western plateau gulf of carpentaria great barrier reef great dividing range
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Geography, 23.06.2019 18:50, owenwernert
The us and canadian governments are doing all of the following to combat environmental problems except a. encouraging the use of public transportation b. enacting clean water policies c. requiring emissions testing d. limiting animal populations in some regions
Answers: 1
If you heat up a bar of iron in a fire until it glows, the light emitted from the iron is caused by...
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