Answer:
One more than a duet.
Environmentalists want to keep this from drying.
What can't you see, hear or feel, until it’s too late. What shadows love, and shopkeepers hate?
Take one royal word in the plural and make it singular by adding one letter
What must you give before you can keep it?
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?