<h2>Variables in forests</h2>
Explanation:
Key variables that can be used to test this prediction are:
- Independent variable:Thinning or no thinning before the fire
Independent variables are those variables which is changed or controlled in an experiment;here in this case thinning of forests(variable) will be changed or we can say will be different before the fire(fire is the condition for the variable to change)
- Dependent variable:tree survival rate after the fire
Dependent variables are those variables which need to be tested and measured in an experiment;here in this case survival rate needs to calculated which will be calculated after the fire(how many trees survived after the fire)
- Controlled variable:elevation of the site,dominant tree species
Controlled variables are those variables which are kept constant and unchanged throughout the experiment;here in this case the site of prediction and species of trees which are dominant remained constant
During the 1980s, iran and iraq battled in a war from september , 1980 - august 1988.
Answer is A.. hope this helps:)
Scientists study DNAto see the genetic changes that occur through generations.
The first word is high and the second is low
