CLASS 10 SCIENCE CH 9 some higher Order Thinking Skill and brain twisting questions

Higher Order Thinking and brain twisting question and answers-click for pdf CLASS 10 SCIENCE CH 9 some higher Order Thinking 1. Life does not originate now a days. why? Solution : Due to presence of oxidising atmosphere and the presence of consumers. Oxygen oxidises the intermediate compounds so no life originates on the earth now … Read more