There are so many examples for that in different areas, like biology experiment carried out in our lab recently.
Here's one link : https://www.creative-biogene.com/symbolsearch_CRE.html
If the current fishing practices remain unchanged, it will take around 50 years.
Phillis Wheatley compares the human heart to the setting sun.
Answer:
Katherine wants to investigate if the time of day a plant is watered affects the growth of the plant right? If she waters the plants at the same time she is not doing the experiment. Although she has the same type of plants, the same amount of water, same location and same amount of sunlight for each of them, how is she going to find out what she needs to if she doesn’t water them at different times?