I think sister groups. Imagine them having the same parents.
Answer:
I believe the answer is B
Explanation:
I hope this helps
Golden retrievers: loyal and playful family dogs
Pit bulls: bred for property guards and sadly dog fighting
German Shepard(K-9): good strength, sense of smell, speed, and stamina. Commonly used in the police force.
Answer:
That there used to be an abundance of plants and animals that lived there. Does this help?
Explanation:
Coal forms from dead things from the past being subjected to high pressure.
