Answer: Farmers were paid to practice soil-conserving techniques like crop rotation and terracing
Explanation:
read about it here: https://www.pbs.org/wgbh/americanexperience/features/dust-bowl-surviving-dust-bowl/ 
 
        
                    
             
        
        
        
Answer:
The rock cycle and plate tectonics cause Earth's rocks to break down over time and they are recycled through natural processes. 
Explanation:
Rock cycle(Attachment-1)
 
        
             
        
        
        
It was the element of aluminium where they predict their properties <span />
        
             
        
        
        
Atoms are fundamental constituents of all matter. The following statement is correct. The nucleus always has a positive charge. This is because the nucleus contains sub-atomic particles called protons. Each proton carries a single positive charge. The nucleus is also home to sub-atomic particles called neutrons that do not possess a charge. 
        
                    
             
        
        
        
The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.