Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties. ... The first part of his theory states that all matter is made of atoms, which are indivisible. The second part of the theory says all atoms of a given element are identical in mass and properties.
        
             
        
        
        
Trees are important because oxygen
        
             
        
        
        
Answer:
(A) a net torque but no net force on the loop.
Explanation:
The total force on the loop is zero because the forces on the opposite sides of the loop are equal but act in opposite directions and as a result they cancel each other out. The two forces on opposite sides to the axis of rotation each give rise to a torque about the axis of rotation. This torque is directed along the axis of rotation. 
 
        
             
        
        
        
Answer:
- increasing use of hybrid crops
- altering genes in DNA to create new plants
- developing disease or pest resistant crops
Explanation:
The use of genetic factors to influence the growth of a plant encompasses manipulating the genetic constituent (gene) of such plant. 
For example, 
- Increasing use of hybrid crops entails mating two pure bred plants based on a gene of interest responsible for a particular trait, to form a hybrid. 
- Altering genes in DNA to create new plants is also a genetic factor as it has to with gene modification. 
- developing disease or pest resistant crops means that the genetic make up of such plant has been modified to be resistant to pest/disease.