The correct answer is (A)
Burning of wood is a chemical change as new substance is formed during the burning of wood which is not reversible.
Now, what happened during the burning of wood?
In the case of burning wood, stored potential energy( in the form of chemical energy) in the log is released due to heating by other excited atoms. This chemical reaction is called combustion that requires oxygen. We can also say that combustion is change of potential chemical energy into kinetic energy in the form of heat.
Answer:
Becoz as we know that human being breathe oxygen and through carbon dioxide. Like wise it's opposite to plants. So it's incorrect to say that plant breathe carbondioxide.
Answer:
An extensive tract of level or rolling land, destitute of trees, covered with coarse grass, and usually characterised by a deep, fertile soil. They abound throughout the Mississippi valley, between the Alleghanies and the rocky mountains. From the forests and the prairies, From the great lakes of the northland.
Explanation:
Answer: E. all of the above.
Explanation: for human infants to grow and develop normally, the need for them to interact with people (family, friends and the public) cannot be over emphasized. Interaction with people goes a long way in the brain, physical and social development of infants.
Frequent interaction with people helps infants in their communication skills.
Answer:
I'm not sure that it's the write answer still..
Explanation:
B)Cause catabolic reactions