Answer:
Astronomers define star brightness in terms of apparent magnitude — how bright the star appears from Earth — and absolute magnitude — how bright the star appears at a standard distance of 32.6 light-years, or 10 parsecs. (A light-year is the distance light travels in one year — about 6 trillion miles, or 10 trillion kilometres.) Astronomers also measure luminosity — the amount of energy (light) that a star emits from its surface.
My source: https://www.space.com/21640-star-luminosity-and-magnitude.html
Hope this helps :)
Ash can be harmful to an environment. It mostly depends on how much ash there is though. If a volcano erupted such as Mt. St. Helen's then yes that can harm an environment. Ash can cover the sky and block out the sun for days before disappearing and that will affect the life of plants
Answer:
B. Place a proton above the original path
Explanation:
Like charges would repel one another. Unlike charges would attract.
When the proton is placed above the original path, it repels the fired proton and thereby goes downward.
Hello,
I believe green water is more fertile. Green water<span> is the soil moisture from precipitation, used by plants via transpiration. It is part of the evapotranspiration flux in the hydrologic cycle. Blue water is just ground and surface water.
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<span>A microscopic plant called phytoplankton </span><span>is the primary producer in open-ocean food chains.
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Faith xoxo