Archaic
Next oldest is the Poverty Point Culture, which thrived from 1730 - 1350 BC, during the late Archaic period in North America.
Answer:
d) Positive outlook and positive expectations.
Explanation:
Being optimistic means to have a positive expectation for what is to come in the future. So, optimism is a tendency towards a positive outlook and a positive expectation in one's life.
This mental attitude of a person reflects an individual's approach towards the events of life. This optimism is the positive attitude and hope for a better future or outcome of an individual's actions/ future. Thus, we can rightly say that optimism is a tendency toward a positive outlook and positive expectations.
In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels. In water waves, energy is transferred through the vibration of the water particles.
