Answer: Plants are cloned to produce identical plants quickly and economically.
A. The amount of carbon dioxide a person releases into the atmosphere
It so should be A.
Mark branliest if it is correct!
Answer:
Knowledge gain through observation and experimentation.
Explanation:
Science is the systematic study of the structure and behaviour of the physical and natural world through observation and experiment. That knowledge which can be gain through observation and experimentations is considered as scientific knowledge and those knowledge which can be attain through other sources not observation and experiments is known as non-scientific knowledge so we can say that observation and experiments provide scientific knowledge.