Answer:
Prevents distortion
Explanation:
Double-pouring technique is used for casting, it prevents distortion of the material to be fabricated or the study model.
It ensures the study or fabricated model is firmly withheld, increasing the material life span, and can be used at extreme conditions.
This type of technique takes longer time to set than the single pour method as it gives the needed base to yeild the oral structures.
Sound waves enter the outer ear and pass into the ear canal where the waves cause the eardrum to vibrate.
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The herbivore eats plant and the carnivore it’s meat each one eats one specific thing meaning that on a food feb as long as they keep doing what they are doing it doesn’t mess the environment around them
The wood in a matchstick is made of cellulose, a polymer of glucose molecules. When you light the matchstick, heat and light are given off, indicating that an exothermic reaction is occurring.
There are two types of reactions:
1. Exothermic reactions: In these reactions, the reactants combine to form product and heat is liberated. Example, burning of fuel.
2.Endothermic reactions: In these reactions, the reactants combine to form product and heat gets absorbed from the surroundings. Example, photosynthesis in plants where the energy of the Sun gets absorbed.
When you combine sodium and chloride together to make sodium chloride (table salt) you get a lot of bright light and a lot of heat. This type of reaction is called exothermic.
