As of 2010, the two countries that are exceeding 1 billion people are China and India. This are by far the two most populated countries in the world, combined, they make around 1/3 of the world's total population. Even with the law that forbid the Chinese to have more then one child, that lasted few decades, their number still managed to grow (mainly because the law was not so strict in the rural areas). India, on the other hand, has very big fertility rate, there's no laws that restrict the number of children a family can have, and with this rate it's just matter of time when will India take over the number one place, as the world's most populated country.
Answer:
c. are renewable
Explanation:
There are many energy sources that the humans have learned to use and exploit. Some resources are non-renewable, while some a re renewable. The non-renewable tend to be cheaper for the time being, and they also tend to produce more energy, but the problem is that the reserves will eventually run out. On the other side, the renewable resources are constantly out there, and they can not be spent, which gives them the advantage on the long run.
The alternative energy sources have been more and more in the focus, especially when it comes to the more developed nations. The main reasons for this are that the fossil fuels will eventually run out, and that they are more environment friendly. This has led to development of technology that is able to harvest energy from the sun, water, and wind, all which are natural resources that are constantly present and can not be spent. Some nations have invested so much in these resources that they have gradually started to replace the fossil fuels, with the end goal being stopping the usage of the fossil fuels totally.
False. It outweighs death rate 8 to 3 on average.
Mars has two. Earth has one. Mercury and Venus are the only planets without moons. The outer Solar System includes Jupiter, Saturn, Uranus, Neptune and Pluto and the rest of the moons.
The creation of the wheel. Hope this helps!
