In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Question: What is the predicted year that as many as half of all remaining species could go extinct? Answer: 2050
2050 is the predicted year that as many as half of all remaining species could go extinct.

Question: What is the term for matter that does not let any light pass through? Answer: opaque
Opaque is the term for matter that does not let any light pass through.

Question: Sickle cell diseas is caused by what? Answer: receccisve allele

Sickle cell diseas is caused by receccisve allele.