Here is one way of making it passive:
Happiness is felt by me.
Answer:
Contrast
Explanation:
Contrasting is finding the difference between two or more things.
Answer:
electricians and social workers
Answer:
I would go with choice c.
Explanation:
The best thing you can do is be very detailed. For example if the drawing was about a tree, explain the branches and the leaves and the background. You can never have to many details! hope this helps! :)