Answer:
outer core...............
Answer: The domestication of animals and agriculture begin in the first civilization in early humans.
Explanation:
Early humans used to hunt small and big animals using tools to obtain them as food. Also the hunting practice used to be tiring, time consuming, effort oriented and people used to hunt individually and also in groups. So, some plant species were identified which can give a good alternative against hunting and they were planted and cared upon. Also some domestic animals proved to be a good source of food and some of them used to help humans in locating food. The domestication of animals is associated with permanent settlement of humans.
Answer: D) purposive sampling
Explanation: Since there is no list of people and there is no reason to believe that they know each other, the researcher will need to get all possible cases that fit his research using various methods. This is known as purposive sampling.
It is a non-random sampling used in situations in which an expert uses judgment in selecting cases with a specific purpose in mind. Here, researcher uses wide range of methods to locate all possible cases of a highly specific and difficult-to-reach population.
Teachers in Anji observe and take part in play, but they do not intervene.
By studying the fossil record we can tell how long life has existed on Earth, and how different plants and animals are related to each other. Often we can work out how and where they lived, and use this information to find out about ancient environments. Fossils can tell us a lot about the past.
