The correct answer, in my opinion, would be a pollutant. <span>A substance that enters Earth's cycles and does harm to living things is a pollutant. A pollutant is a substance that is introduced to the Earth which cause undesirable effects to living organisms. </span>
He<span> gave emphasis on the importance of reinforcement in language acquisition. He gave one of the earliest scientific explanations of language acquisition in 1957. He accounted for language development using the influence of the environment. He made an argument that children learn language on behaviorist reinforcement principles through the connection of words with meanings. According to him, correct utterances are reinforced once the child realizes the value of words and phrases.</span><span> </span>
The answer to your question is: True. The ancient egyptiants participated in sports such as wrestling, long jump, swimming, rowing, etc
The correct answer is Both technicians A and B
Explanation: Waste spark ignition is a compression-sensing system that uses a type ignition.
And because of that the technician A and technician B are right, because they use some type of ignition system that helps to understand this fact.