Scientific discoveries allow several problems that threatened and even hindered our lives to be solved. This can be seen by the development of disease treatment, better forms of mobility, better forms of communication, greater access to entertainment, among other technologies that we can say that make our lives easy, increase our quality of life and allow maintenance of our life is more efficient.
However, scientific advancement promotes the strong exploitation of natural resources, which causes degradation of those resources that are essential for our existence. With degeneration increasingly efficient, we do not know what our lives will be like in the future, but we know it will be insecure because we cannot fight against the force of environmental imbalance.
I believe your answer is A because almost all people with knowledge know that grass is green. Someone would only ask this if they weren't for sure, such as someone being color blind. Hope this helped!
Thanks!
~Steve
its to seperate the stamement in to two pieces
Answer:
1.Sweetie went to Australia last year
2.The office received his letter a week ago.
3.John saved the girl
Hope it helps :)
A and d would be correct if it is multiple choice