Because it’s time consuming and money consuming to observe from space so models are required
Answer:
i think its c, but could you tell me if its right or not?
rate 1 if its not right
Explanation:
Every person has their own part to play or if you want to get scientific then a niche. And if somebody doesn't do their job then it could slow everyone else down. Maybe I don't fully understand the question, But I hope its right.
