Note: Question is incomplete i have added full question in ask for detail section.
Answer:
Option a) Velocity increases.
Explanation:
When liquid flow from wider vessel to narrow it follow bernoulli's law. It means the velocity will increase. I have attached picture for better understanding.
A- non-native species can have positive and negative affects
Answer:
According to the previous observational study it is possible to notice that thinning determined in great way the rate of trees that survived the fire.
Explanation:
In general the trees that had been previously cut, were the ones that presented more resistance to the fire, while the trees that had not been thinned were the ones that were severely affected in the spreading conflagration. Reason why in comparison of these two samples, it would be possible to conclude that previously cutting down trees can survive better to the spreading fire.
