The new vaccine for corona virus implemented within the world by this year. ( write the future perfect form) * will have been
will be
will have
will be having

Critics and writers both praise and criticize the adventures of huckleberry finn. in at least one hundred words summarize the pros and cons of the novel, as some of them see it?

Match the definition to the word. 1. person or group opposing or hostile to another person or group propaganda 2. arranged in the order in which the events happened spatial 3. based upon reason; a rational approach to something logic 4. a method or system used to accomplish something adversary 5. having to do with space technique 6. coming one after another, in series, or in order chronological 7. the spreading of opinions or beliefs implied 8. suggested, indicated, or understood without express statement sequence

What are the similarities of physical and chemical change ?