Question

Q.1 Tick the correct option.
[02]
1. Which are three main factors that cause population change?
(à) Births, deaths and marriage (b) Births, deaths and migration,
(c) Births, deaths and life expectancy.. (d) Births, deaths and circumference,
2. In 1999, the world population reached.
(a) 1 billion.
(b) 3 billion.
(c) 6 billion,
(d) 4.5 billion.​

Answer 1

Answer:

1.a.births,death and

marriage

2.d.4.5 billion