Finding the patterns of demographic variations ....nahh im just playing dont put that as an answer THE real answer is that what Anna is working on, given that she wants to find the patterns of demographic variation, is population structure.
Out of the choices given, all of them provides an example of humans adapting to their environment. Humans had to have homes with insulation to survive winters, they needed to irrigation to help grow crops, and they had to learn to use the trees for firewood. The correct answer is all of the above.
All of the following were agricultural hearths, except (B)<span> sub-Saharan Africa. Basically, sub-Saharan part of Africa geographically lies in the south of the Sahara desert. Agricultural resources and works are not merely applicable in deserts like Sahara. Vegetation there is very different.</span>
The human activity in China's climate has had huge impact for the past few decades in particular. We can see it in two ways:
1. Negative effects; these are consisted in changing the climate on local level, but the problem is that those local changes are on lots of places. China has huge cities, the industry is the biggest in the world and not very caring about the environment, so the cities and their close surroundings have their own unique micro climate mainly because of the enormous pollution that changes the air structure and because of the overheating of all the infrastructure in the cities, as well as stopping the natural wind flows.
2. Positive effects; these can be seen in the Inner Mongolia province in China that is mainly desertous region. The scientists and the local population with mutual collaboration in the past few years are turning the desert into a green territory by using plants that are evergreen but also have no problems with extreme droughts and lack of water.
<h3>There are various reasons for which a person likes traveling. Maybe you like to see new places and explore locations you have never seen before. Maybe you like looking at beautiful landscapes. Alternatively, perhaps you are interested in the culture and traditions a certain nation has. The latter is not as common as the first ones, but it is a legitimate reason to travel across the world. Some people are just curious to see what is like to live in another country. Some nations have a unique way of life, something that you do not see every day. Certain traditions have been kept for hundreds or thousands of years. Those are the ones you want to see. To witness such things, you must know which cultures hold them. Below you will find a list with ten destinations where tradition is put on a pedestal. You will have a lot to learn from the people you find there.</h3>