A is the answer to the question and b is the answer to the second
D I believe but I’m not so sure
Because they didn't get full education and can't pay for it.
if this was helpful then please mark brainiest
Answer:
Starting in the 1900s, technologies and industrial developments advanced enormously, modifying the living conditions of human beings in general, throughout the entire width and length of the earth's surface.
Thus, starting with the Industrial Revolution of the mid-1800s, technologies such as the steam engine and the development of automated means of production generated a series of technological advances that allowed a greater modification of the environmental environment of human beings, in in order to guarantee better living conditions.
Now, these modifications, which at first were not harmful or at least not to a great extent, over the years and the development of technological advances began to impact the environment: the extraction of raw materials began To generate scarcity of them, the emission of gases into the atmosphere began to generate the phenomenon of global warming, and even indiscriminate hunting led to the extinction of hundreds of thousands of animal species.
Answer:
The results only apply to the individual or group being studied.
Explanation:
Case study is one of the methods followed for researches and observations. It helps in an advanced and detailed method of getting along with a particular topic. In case studies, the topic or the subject is studied extensively and observations are made through them. Case studies involve a detailed study of individual or group whose results are not in a general form. The results are applied to the specific individual or the group.