<h2>Fixation</h2>
Nitrogen in its gaseous form (N2) can’t be used by most living things. It has to be converted or ‘fixed’ to a more usable form through a process called fixation. There are three ways nitrogen can be fixed to be useful for living things:
<h3>Biologically: </h3>
Nitrogen gas (N2) diffuses into the soil from the atmosphere, and species of bacteria convert this nitrogen to ammonium ions (NH4+), which can be used by plants. Legumes (such as clover and lupins) are often grown by farmers because they have nodules on their roots that contain nitrogen-fixing bacteria.
<h3>Through lightning: </h3>
Lightning converts atmospheric nitrogen into ammonia and nitrate (NO3) that enter soil with rainfall.
Answer:
Substances with a pH less then 7 are acids. So they are 0-7
Explanation:
Hope this helps :)
Answer:
For conduction
A.
air molecules touch the warm ground, heating them up because conduction is the transfer of energy through direct contact
For convection
B.
Warm air rises and takes heat with it; eventually it cools and sinks.
Explanation:
Answer is C) - Nuclear power produces no carbon dioxide emissions unlike coal or oil power production.
Nuclear power use natural Uranium to make energy and water is used as cooling process. Hence, nuclear power production uses natural resources.
The waste is very harmful in nuclear power production. That should be managed by a proper way.
Although nuclear power can produce a huge energy, the availability of nuclear power is less than coal and fossil fuels.
But the greatest benefit of nuclear power is, it does not emit carbon dioxide which contributes to global warming.
