Answer: Migrants have contributed to the development and expansion of small businesses, which are the cornerstone for the Australian economy. They have contributed to the development of technology bringing to the country cutting edge technology in particular from Asia and Eastern Europe.
Explanation: i hope this helps :)
Gold is plentiful in Africa and is a necessity for most technological devices.
I think the second one since the largest bar (?) is for infants meaning that the population is mostly 4 year olds. Hopes this helps!
One astronomical unit is equal to the distance from Earth to the Sun. The second option among all the options given in the question is the correct option. The distance as calculated in the year 2012 by the International Astronomical Union was equal to 149597870700 meters. Astronomers like to use this unit for measuring the distances between planets and other solar bodies.
One way is that the sun is heating up the world causing droughts and causing the water level to rise to cause floods
