Answer: Nitrogen fixation in soil is important for agriculture because even though dry atmospheric air is 78% nitrogen, it is not the nitrogen that plants can consume right away. Its saturation in a digestible form is a necessary condition for crop health. ... It is possible thanks to nitrogen-fixing organisms and crops.
Explanation:
Answer:
3x+y=45......equation 1
x-y=20......equation 2
Explanation:
There are now two equations, solve them using elimination or substitution method
I'm not 100% sure this is correct but this is the way I had learned.
Trade barriers, such as taxes on food imports or subsidies for farmers in developed economies, lead to overproduction and dumping on world markets, thus lowering prices and hurting poor-country farmers.
