Nitrogen fixation<span>. </span>Nitrogen fixation<span> is a </span>process<span> by which </span>nitrogen<span> in the Earth's atmosphere is converted into ammonia (NH</span>3<span>) or other molecules available to living organisms. Atmospheric </span>nitrogen<span> or molecular dinitrogen (N</span>2<span>) is relatively inert: it does not easily react with other chemicals to form new compounds</span>
The epiglottis is a flap in the back of your tongue that prevents food from entering the larynx. When your mouth is closed, the epiglottis is in place and blocks the larynx opening. If your mouth is open, the flap lifts and the larynx is no longer blocked so you can breathe. This is why it's important to not chew with your mouth open... if you do, then food can go down the larynx by mistake.
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what is meant by I can't understand this
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Photosynthesis takes place inside plant cells in small things called chloroplasts. Chloroplasts (mostly found in the mesophyll layer) contain a green substance called chlorophyll. Below are the other parts of the cell that work with the chloroplast to make photosynthesis happen.
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The process of photosynthesis is energy storing because the process converts light energy into chemical energy, which is
stored in the bonds of glucose.