It’s was very hard for them. They spent there life in caves,wrap in animal skin and tree leaves over their body and hunt animals for food. With time they discovered many good things like fire,tools,farming etc. that made there life better than earlier. But these changes in early human’s life had taken a long time. Hope that helped!❤️
        
                    
             
        
        
        
Answer: 
the buyer's' ability  to pay and the willingness to buy, as well as the producers' ability to provide and the willingness to sell. 
Explanation: hope this helps. 
 
        
                    
             
        
        
        
Some of the types of financial assistance which can be rendered to a person includes:
- Grants
- Scholarships
- Loans, etc
<h3>What is Financial Assistance?</h3>
This refers to the monetary help which is rendered where a person is either given money or allowed to undertake something without making monetary payments.
With this in mind, we can see that there are different types of financial assistance which can be used to solve some needs or problems and they include grants, scholarships, etc.
Read more about financial assistance here:
brainly.com/question/835751
 
        
             
        
        
        
<u>Alpha radiation</u> is a type of airborne particle that rapidly loses energy as it moves through the atmosphere, has weak penetrating strength, and can be prevented by clothing or a piece of paper.
<h3><u>Why does alpha radiation exist?</u></h3>
Two protons and two neutrons are bonded together to form an object resembling a helium-4 nucleus, which is what is known as an alpha particle, also known as an alpha ray, or alpha radiation. Although there are additional possibilities, they are often created during the alpha decay process. 
The Greek letter, which begins the alphabet, is where the name "alpha particle" originates. Alpha is represented by the sign 2+. Net spin is zero for alpha particles. Alpha particles typically have a kinetic energy of around 5 MeV and a velocity in the area of 4% of the speed of light because of the mechanism of their generation in ordinary alpha radioactive decay.
Learn more about alpha radiation with the help of the given link:
brainly.com/question/6070167
#SPJ4
 
        
             
        
        
        
<span>Dr. Allan seems to favor a medical approach to understanding depression. There are various approaches to the study and treatment of mental illness. Among
these approaches is the medical approach, which considers mental
illnesses as a chemical disorder which must be treated in a medical way
by means of psychotropic medications. <span>This approach is what most psychiatrists consider.
I hope my answer can help you.
</span></span>