Answer:
Everyday Examples of Convection
This hot water rises and cooler water moves down to replace it, causing a circular motion. radiator - A radiator puts warm air out at the top and draws in cooler air at the bottom. ... ice melting - Ice melts because heat moves to the ice from the air.
Explanation:
Plz brainliest
 
        
             
        
        
        
Answer: taking deep breaths 
Explanation:
Apart from reminding oneself that you are prepared for the presentation. You can carry out a physical exercise like the breathing exercise by taking several deep breaths and exhaling to reduce nervousness. Also you should be mindful that the audience is there to hear you and not to judge you. In that way you can ease out tension.
 
        
             
        
        
        
Answer:
the answer is d 
Explanation:
 Individual oxygen atoms are formed when UV rays strike oxygen molecules.
 
        
             
        
        
        
The cells die because they are not getting enough water to get perform photosynthesis.
        
             
        
        
        
B. between the hydrogen atoms of two water molecules