(Q).
Q: Are humans a new or old species on the earth? Read this paragraph and choose the correct option from the provided answers: This timeline shows the history of life on Earth. In the entire span of the time, humans are a relatively new addition. Choices: - primal - old - extinct - new A:
(A).
new

(Q).
Q: Has this ever happened to you? you walk across a carpet, reach out to touch a metal doorknob, and get an unpleasant electric shock? .the reason you get a shock is because of what? Read this paragraph and choose the correct option from the provided answers: Has this ever happened to you? You walk across a carpet, reach out to touch a metal doorknob, and get an unpleasant electric shock (see Figure below ). The reason you get a shock is because of moving electric charges. Moving electric charges also create lightning bolts and the electric current that flows through cables and wires. Choices: - sunlight charge - temperature charge - solar charge - electrical charge A:
(A).
electrical charge

(Q).
Q: Like the marketplace, the metabolic economy is regulated by what basic principle? Read this paragraph and choose the correct option from the provided answers: Choices: - jobs and demand - price and demand - industrial and demand - supply and demand A:
(A).
supply and demand