Answer:
B. an action, an event, a circumstance or an actual thing done
Explanation:
A fact is an action,an event,a circumstance or an actual thing done. A fact is also a thing that is known or proved to be true.
I think its D.... because it started in China.
Answer: synaptic receptors
Explanation:
The best option is option. C
<u>IRRIGATION</u>
- The agricultural practise of applying measured amounts of water to land to help in crop production, as well as to develop landscape plants and lawns, where it may be referred as watering, is known as irrigation.
- Rain-fed agriculture is defined as agriculture that does not utilise irrigation and relies only on direct rainfall.
<h3><u>What makes irrigation crucial?</u></h3>
- Two crucial agricultural needs are met by irrigation in dry regions of the world:
- (1) a moisture supply for plant development that also carries vital nutrients; and
- (2) a flow of water to leach or dilute salts in the soil.
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Brackish water is water that has some salt/sea water, but is mostly fresh.