Two mixtures not combined , separated.<span />
Answer:
5 environmental factors are
- Exposure to hazardous substances in the air, water, soil, and food.
- Natural and technological disasters.
- Climate change.
- Occupational hazards.
- The built environment.
Explanation:
Answer:
Though a hydrogen atom has only one electron, it contains a large number of shells, so when this single electron jumps from one shell to another, a photon is emitted, and the energy difference of the shells causes different wavelengths to be released. Hence, mono-electronic hydrogen has many spectral lines.
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Answer:
a magnifying scope
Explanation: you get a close up view of the target and because of that there is a lower margin of error
