Question

(Figure 6.19 and 6.20 on textbook page #95)
Q#5. How useful is it to study a country's population pyramid when deciding
on what population policies to implement?​

Answer 1

Answer:

There are three main trends in populations that affect the shape of a population pyramid. The first is when there are both high fertility and high mortality rates among younger members. ... Population pyramids are useful for studying the future of a region as well as examining historical and current population trends

Answer 2

The 10 simple machines that we use in our daily life are:

1. Inclined plane.

2. Lever.

3. Wedge.

4. Wheel and axle.

5. Screw.

6. Pulley.

7. Nutcracker.

8. See-saw.

9. Broom.

10. Bottle opener.