Causes air pollution is the answer hope it helped
Whereas a change that causes change in chemical composition of a substance is known as chemical change. For example, A new substance is always formed in a chemical change. Thus, we can conclude that the definition a chemical change produces a new substance by breaking and forming new bonds, is correct.
Answer:
The correct answer will be option-B.
Explanation:
A synapse is a junction or point of contact between two neuron cells in the human body.
In conditions when the synapses are overproduced in the brain during development is followed by the reduction of this synapse. This process of the gradual reduction of the overproduced synapse is known as the <em>synapse pruning.</em>
The synaptic pruning is highly dependent on the area of the brain in which synapses are present, experience and learning like the synaptic pruning is observed in the 4th to 6th year of life in the area which is involved in the auditory and visual perception.
Thus, Option-B is the correct answer.
c. Facial expressions coupled with effective responses
Explanation:
Emotions are an important aspect of human life. Research on emotions has produced several discoveries which led to important real world applications.
- an emotion is the result of the arousal as experienced
- universal facial expressions of seven emotions
- anger, contempt, disgust, fear, joy, sadness, and surprise
- when emotions are experienced even a blind person produces the same facial expressions