Answer:
The tissues of a leaf needs to have the ability to resist changes in their natural environment so that they can survive
I don't know the real answer because you didn't attach the choices, but Adenine (A) is always paired with Thymine(T) and Guanine (G) is always paired with Cytosine (C).
Explanation:
it's very reactive which helps to make strong bones
1. climate change (C)
2. use more nonrenewable resources (A)
3.by polluting near by streams with pesticides and herbicides (B)
