Changes in which one or more new substances are formed are called ____ changes.
Changes in which one or more new substances are formed are called ____ changes.
The correct option is B Chemical
Changes are mainly of two types-
- Physical changes
- Chemical changes
The explanation for the correct option:
Chemical change:
A substance is said to undergo a chemical change when the chemical properties of a substance alter. As a result, there is either formation or breaking of atomic bonds at the molecular level.
Examples of chemical change
- Burning of coal
- Digestion of food
So, as we can understand by the above explanations that the changes in which something new is formed are called chemical changes.
The explanation for the incorrect option:
Physical changes:
A substance is said to undergo a physical change when the chemical properties of a substance do not alter, only changes take place in their physical states. Example of physical change:
- Melting of ice
- Moulding of clay
Atmospheric changes:
The changes in the composition of the Earth’s atmosphere, specifically the carbon dioxide and oxygen levels, as drivers for fluctuations in atmospheric temperatures, which can, in turn, influence the temperature and level of the ocean.
Therefore the correct option is option B.
Chemical
Changes are mainly of two types-
- Physical changes
- Chemical changes
The explanation for the correct option:
Chemical change:
A substance is said to undergo a chemical change when the chemical properties of a substance alter. As a result, there is either formation or breaking of atomic bonds at the molecular level.
Examples of chemical change
- Burning of coal
- Digestion of food
So, as we can understand by the above explanations that the changes in which something new is formed are called chemical changes.
The explanation for the incorrect option:
Physical changes:
A substance is said to undergo a physical change when the chemical properties of a substance do not alter, only changes take place in their physical states. Example of physical change:
- Melting of ice
- Moulding of clay
Atmospheric changes:
The changes in the composition of the Earth’s atmosphere, specifically the carbon dioxide and oxygen levels, as drivers for fluctuations in atmospheric temperatures, which can, in turn, influence the temperature and level of the ocean.
Therefore the correct option is option B.
