Explain the phrase: " a bird in the hand is worth two in a bush."

The psychological effect of insurance.

Explanation:

The saying we often hear also received a scientific explanation. This saying is defined as the effect of insurance. The scientists thus performed an experiment where they gave the participants of the experiment certain expensive objects. After a few days, they were asked to sell those items and invest the money in something else. Participants at that time were connected to certain instruments that monitored their reaction inside the body. Oscillations were observed in increases in certain hormones associated with fear and insecurity.

Among people, this saying alludes to safety, to keeping what you currently have and not exposing what you have to too much risk, or replacing it with something more than that because you can be left without everything.

b or c im pretty sure

2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.