Answer:
photic zone.
Explanation:
it is a high layer of the water region. There is no land at the top of the water, if we plant the tree there, the shrub will drift into the water. There is Sufficient daylight but there is no ground.
Sediment . The trees was blocking the view so its organic
Close the yield gap. By 2050, 120 million hectares of natural habitats will be converted to farming in developing countries, the World Wildlife Fund estimates. ...
Use fertilizer more efficiently. ...
Raise low water productivity. ...
Target food for direct consumption. ...
Reduce food waste.
ν=c/λ
c=300.000.000m/s=300.000.000.000.000.000nm/s
λ=532nm
v=300.000.000.000.000.000/532=5.6*10^14Hz(third option)