Combine the ideas into one sentence. You may change the word forms, but do not change or omit any ideas. There may be more than one answer
1. The main cause of the problem is a lack of natural resources
These natural resources include coal and oil
This lack of resources is severe
2. The president played a part in passing a bill.
The Vice President played a part in passing a bill.
The bill raises taxes on sodas
The bill raises taxes on other sugary drinks
3. In the experiment, the scientists placed coffee plants in special containers.
The purpose of the experiment was to see how much oxygen the plants would produce.
The experiment was last week.