Answer:
They use a control group.
Hope this helps :)
Answer:
It is 4.3
Explanation:
because 15.7 minus 11.4 is equal to 4.3.
Proximentaly 2 hours, hope i helped
The effect of deforestation due to urbanization is partly to lose habitat for wildlife that lived in the forest and also it can increase erosion if it is on a mountainside with somewhat steep terrain, for example. On the other hand, once a new section of city is developed properly, it may have have new parks which can provide some habitat for small animals like squirrels and also birds.