Answer:
Organs
Explanation:
It is a system of cells and tissues. Organisms are comprised of organs. Btw what anime do you like?
The Modern World, where everything is artificial and ephemeral; where you have to pay for a "need" created or for clean air.
The greed of man to generate wealth and status regardless of the impact it generates on his environment, to be accepted by his family and society.
Unsustainable production systems, which destroy ecosystems and alter the life of the animals that live there.
Children living in the Modern World, who know little about the nature and the effect of our actions on the environment.
Caring for the environment is in the hands of the new generations, especially those who really care.
The correct answer is: A. How does changing the amount of water affect the growth of corn?
While options B, C & D are not impossible to test, option A is the only question that can be tested using quantitative methods, such as statistical analysis. The question in option A states: "How does changing the amount of water affect the growth of corn?". This question is easily testable using scientific investigation, because controlled or measured amounts of water can be added to corn, and the consequent growth rate of corn can be easily measured and recorded. However, the questions in options B, C & D cannot be precisely measured using quantitative tools, since they aim to measure qualitative (subjective) factors, such as: ethics, happiness and disappointment.