<u>"</u><u><em>False" because the pure substances are made up of single elements or compounds.</em></u><u> </u>Hope this helps! Thank you for posting your question at here on Brainly. Have a great day! -Charlie
The launch of a rocket into space involves an excessive amount of fuel, so scientists are continuously researching new measures to make flight more efficient. This involve new types of petrol, new technologies, and structures that are more aerodynamic. Securely flying. I hope this helps. -hafsa
its B. Organ b/c the plants root are part of the plant