It can't be released by photosynthesis
        
             
        
        
        
It is speeding up because more distance is covered every second.
Explanation:
The car can be described to be speeding up because more distance is covered every second. 
From what we understand about velocity and acceleration, the car is accelerating through the ramp. 
It's velocity is increasing with every second it covers. 
This will invariable reduce the time between each distance covered. 
Originally, the toy car starts with a low initial velocity or speed. As it gains acceleration, the speed will increase and more distance covered per seconds. 
This is why the dots clustered towards the end of the diagram. The positions are getting closer and distance reducing per seconds. 
Learn more: 
Speed brainly.com/question/1548911
#learnwithBrainly
 
        
             
        
        
        
Experiments in general are more reliable when a greater sample size is used. When using a small sample size, a mistake or fluke can greatly effect the outcome of the experiment. With a large sample size, there is more data to understand averages and deviations to the average data. The average will likely be more accurate with more data, which would make his sample size more reliable.
        
                    
             
        
        
        
Answer:
yes they increase the rate that the are working normally 
 
        
             
        
        
        
The best way to do a observation can be a microscope or by taking notes ,and by , taking pictures or,  asking questions about the subject that you and the teacher or you, your teacher and the class is talking about .! Hope this helps ..