Bromothymol blue is used as an indicator in many laboratory reactions.<span> This is a dye that is considered to be pH sensitive</span>
An example of selective breeding is breeding cattle to produce better meat.
This is an example le of commensalism.The burdock seeds benefit and the cow is unharmed.
The answer is 4. Hope this helps
What textbook? Most of their power is from Hydroelectric dams (59% of it)