Answer: Find out what you can do if you think you or a friend has a drug or alcohol addiction - from recognizing the warning signs to suggestions to help you stay away
Explanation:
Answer:
In this scenario, the green light is a(n) <u><em>signal</em></u>.
Explanation:
In the above scenario, with time, the pigeon has learnt that he will be rewarded only when the green light is on. Such a condition is known as learned behaviour. In the future, the pigeon will only peck the button when the green light is on because he will know that he will be rewarded for pecking the button only when the green light is on. Hence, the green light is the signal for the pigeon to start pecking the button.
Answer:
A. Fulcrum is between the pull and the load
Explanation:
In the first class levers, the Fulcrum is present between the force or effort and the load. Pliers, scissors, a crow bar, a claw hammer, a see-saw and a weighing balance are the examples of first class levers in which the fulcrum exists in the center while the effort is located at one side and the load is present on the other side of the fulcrum.
Answer:
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Explanation: