The scientific method steps are
1. Observe
2. Question
3. Hypothesis
4. Production based on the hypothesis
5. Test
6. Use results to conclude if your hypo was right or not.
7. Make a new hypo
The method is a scientific way of finding the answer to your questions. Or in other words. Gathering knowledge that is based on characterized and developed scientific evidence.
I'd say D but i'm not 100% sure
54954 gmfn 45443 rfe546654
Answer: The cause can be something that causes the problem and the effect is what effected it. If something caused the population to go down the effect would be death rate or birth rate.
Hope this helps!
A cell is the smallest basic unit of life