Growing willow for biofuel is sustainable development because it is a source of fuel which potentially will never run out. For every willow tree that is cut down, another can be planted in its place. This means that the source of fuel is potentially limitless and subsequently sustainable.
A, I believe. Because after collecting you need to analyze in order to do many other steps. Also all the other answers are something before collecting data
Gravitropism
Phototropism
Thigmotropism
Answer:
B
Explanation: Decreasing the temperature will not make the increase rate at which something dissolves quicker it would only make it go slower.