The reason for this is that <span>these two ketones are so small that they have only one possible ketone. So the number is usually omitted. Normally the ketone group needs a number but these two are exceptions</span>
These are all the answers. Hope I helped
1. A
2. C
3. A
4. B
Gasoline, and related fuels have helped society by being a reliable fuel which has powered great things. However these fuels pose hazardous chemicals that can be released into the environment, damaging our valuable ecosystem. Such as greenhouse gasses. However society can overcome these challenges by using other renewable resources. Like power from rivers and wind. In conclusion, great resources have great trade offs.
Answer:
mammals are the animal who lay eggs