Carbohydrates, including simple diagrams to show the CHO ratio compared to other molecules and how simple sugars combine

burning of wood and coal

explanation:

the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.

d

explanation:

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies