I would say an investigation is a part-by-part scrutiny of a given problem. An investigation is examining a problem as to for example, what happened, how did it happen, when and why and re the consequences.
There is no diagram or image attached. However, from the question, it is easy to deduce that the subject is about Trophic Levels and Energy Transfer.
Please see the attached image.
According to the science of Energy Transfer, the amount of energy available at each successive level of the food chain or food pyramid, or trophic level becomes smaller and smaller relative to the energy level available in the preceding level.
As seen in the image to the left, the sun which is a natural source of energy contains an abundant amount of energy. The plant is a primary producer because it produces food directly from the sun and hence has at its disposal an abundant amount of energy.
Mice are an omnivore (that is, they eat both plants (such as wheat) and animals such as grasshoppers) hence it can be found at the two levels above the plant's trophic level. This means that they can be primary or secondary depending on what they are feeding on at the time.
So in its relationship with the wheat, the mouse is a secondary consumer. Because energy is lost as one travels up the trophic level, the amount of energy available to mice at that level is way lower than the amount available to the wheat.
Learn more about Tropic Levels here:
brainly.com/question/13218108
If you mean geographically/biologically - the world is changing, and so will the environment, and with the problems we have now a days, it's likely to change fast in aspects such as temperature (will get hotter), fauna and flora (will decrease), etc.
If you mean politically - some countries might gain more territory trough battles or wars, and some other countries might possible "reclaim" long-lost lands that belong to them historycally.
Hope it helped,
BioTeacher101
Federal government a.k.a. U.S. Congress