Answer:
1. Formation of a gas
2. Formation of precipitate
3. Liberation or absorption of heat, light, or some form of energy
4. Distinct change in color
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It is because it is a physical change to which chemically it doesn't have any changes
Controls senses and most body functions .
Carries message and information between the brain & body
Explanation:
The nervous system helps to control senses, body functions, carries message and information between brain and the body. It consists of the brain, spinal cord and the nerves.
- Using series of electrical nerve impulses, the nervous system controls the body administration.
- The brain, spinal cord and nerves directs communications between different parts of the body system.
- It is divided into two broad categories, the central nervous system which consists of the brain and spinal cord and the peripheral nervous system which is made up the nerves.
Learn more:
neuron brainly.com/question/4662759
nervous system brainly.com/question/8701152
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Answer:
physical
Explanation:
The zinc (which was already silver) coated the penny. The NaOH dissolved the zinc. (that was what made the water murky) And small pieces of zinc adhered to the penny (coated) It was a physical change because no NEW color was created.
Scientists believe that the solar system was formed when a cloud of gas and dust in space was disturbed, maybe by the explosion of a nearby star(called a supernova). This explosion made waves in space which squeezed the cloud of gas and dust.
