B is unsustainable as this is a practice of intensive farming usually conducted indoors, and is resource and energy expensive. C is unsustainable because groundwater is a limited resource and groundwater can take 1000s of years to be recharged. D is unsustainable as this involves moving water across vast distances and is expensive and ecologically damaging. A is sustainable as drought-resistant plants would in the long run use less water.
Im pretty positive the answer is D
hope it helps bro
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The part of the leaf that is connected to the transport sister in the veins of the leaf.
I'm pretty sure its c or d
A form of asexual reproduction of a plant. Only 1 plant is involved and the offspring is the result of the 1 parent. It is genetically identical to the parent.
