The first one. Exists whenever buyers and sellers exchange goods and services.
Answer:
c. "Ahlan usahlan!" Abdul-Karim agreed. "Tomorrow morning, then. Now let's get back to the house and listen to some songs. We have a gramophone."
Explanation:
The above is he logical answer to the question.
He stayed there for 3 hours and 30 minutes. He went back home at 2:30 pm.
Answer:
1. when asked which bird flies backwards, most people know it's a hummingbird.
2. Hummingbirds can fly forwards, fly backwards, and hover.
3. Nir Sapir, a scientist, used wind tunnels to study hummingbirds.