Answer: Alan is shifting from familiar to newer information
Explanation:
According to the question, Alan is linking the concept of photosynthesis with requirement of plant for sunlight and then telling synthesization of food in plant with help of water and carbon dioxide following the rest topic.
He is making these connections among certain parts to which student are familiar with so that he can teach them about related new information.Student know basic information to which he is adding more detailed information through transitioning to make them understand concept .
Answer: peer review
Explanation:
Peer review is the process or ways of subjecting an author's work, research or ideas to the scrutiny of others who are experts in the same field
Answer:
The variation in the languages being spoken in the whole of Europe has been in talks and has received a great deal of appreciation and attention from the linguistic communities of other countries.
Europe is huge geographical region which consists of different cultural values. The mix of language and intermingling has lead to people from different regions to come together and cherish each other traditions and cultures. The spread of culture has become faster due to the different languages and their understanding.