Out of the 92 elements of nature, how many are used as building blocks for life?
A) About 75%
B) About 65%
C) Between 40% and 50%, depending on the type of biochemistry
D) About 27%
E) Less than 10%
To determine the answer to the question, we need to understand which elements are considered building blocks for life out of the total 92 elements in nature.
In order to do this, we look at the most common elements found in living organisms. These elements are responsible for making up the various biological molecules that form the basis of life.
The four most abundant elements in living organisms are carbon (C), hydrogen (H), oxygen (O), and nitrogen (N). These elements, along with a few others, account for the majority of the molecules found in living organisms.
Therefore, the answer to the question is option E) Less than 10%, as only a small fraction of the 92 elements in nature are used as building blocks for life.