Answer:
Explanation:A mechanical wave requires an initial energy input. Once this initial energy is added, the wave travels through the medium until all its energy is transferred. In contrast, electromagnetic waves require no medium, but can still travel through one.
 
        
                    
             
        
        
        
Answer:
The deposition of sand mediated by waves produce beaches and sandbars. The waves continuously erode and shape the coastline.
Explanation:
 
        
                    
             
        
        
        
Chewing a saltine cracker is a physical change
        
                    
             
        
        
        
The 5 different living things chosen based on my location are:
- Birds
- Lizard
- Snakes
- Rats
- cockroaches
Yes, the structure of one organism's parts work do work with a different organism such as the snakes and lizards scales does the same function.
<h3>What are some of the structures of these living things?</h3>
The structure and how the structure relates to the organism's function are;
- Birds - The beak is used for picking food, sallow and to catch insects.
- Lizard -Scales on their outer layer skin that is dry and has some levels of keratin and it act to  protect their body and hinder water loss.
- Snakes - Scales on their outer layer skin that is dry and has some levels of keratin and it act to  protect their body and hinder water loss.
- Rats - Teeth consist of a pair of incisors as well as molars for picking insect, chewing and eating.
- Cockroaches - has antennae for sensitivity as well as strong mouthparts that is often used scraping and chewing food.
Therefore, The 5 different living things chosen based on my location are:
- Birds
- Lizard
- Snakes
- Rats
- cockroaches
Learn more about  living things from
brainly.com/question/280237
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Explanation:
A sugar is a source of carbohydrate which is made up of carbon and oxygen atoms. Providing a yeast with more amount of sugar will increase the process of fermentation which is the anaerobic respiration. The carbon dioxide will be released after this process. The released carbon dioxide gas can be measured by observing the shape of the balloon and measuring the quantity of carbon dioxide present in the balloon.