The test is nice. However, there are following issues. 1. Explanations are copied from wikipedia without providing a reference / credit to the source. For example, question about Einstein https://en.m.wikipedia.org/wiki/Albert_Einstein. Explanation copied word by word even without deleting citation number from wikipedia (5). 2. Modern photos of scientists are not properly referenced. most of the have copyright rules
1. Explanations are copied from wikipedia without providing a reference / credit to the source. For example, question about Einstein https://en.m.wikipedia.org/wiki/Albert_Einstein. Explanation copied word by word even without deleting citation number from wikipedia (5).
2. Modern photos of scientists are not properly referenced. most of the have copyright rules