no smoking; chemicals can be flammable
☢ radiation; exposure to radiation must be monitored as it is dangerous if exposed to high amounts
☣ looking this one up.
Answer: the electrons lose some or all of the excess energy by emitting light.
Explanation: These levels are called energy states. ... When an electron in an atom has absorbed energy it is said to be in an excited state. An excited atom is unstable and tends to rearrange itself to return to its lowest energy state. When this happens, the electrons lose some or all of the excess energy by emitting light.
please give brainliest!
Natural Selection. Based on Google and National Geographic
Answer:
<u>Yes it can be eco-friendly, but under certain conditions.</u>
Explanation:
Everyone will have their own opinion to whether it's eco-friendly, but some believe that in the long run, cutting down trees and not re-planting them is the problem.
I hope I could help!
<span>http://www.geosociety.org/science/timescale/timescl.htm
The geologic time scale is organized based by major geological events.
</span>
