Question #N1398

The passage describes the impact of human activities on the environment. The author suggests that human activities, especially those related to agriculture and urbanization, can have a negative impact on biodiversity. The author also points out that these negative impacts are not always immediately apparent. It is important to consider the long-term effects of human activities on the environment, especially in terms of the effects on the survival of plant and animal species.

What is the most likely reason why the author suggests that the negative impacts of human activities are not always immediately apparent?
A. The negative impacts of human activities are often gradual and may not be noticeable until they have become significant.
B. The negative impacts of human activities are often masked by the natural beauty of the environment.
C. The negative impacts of human activities are often difficult to measure and quantify.
D. The negative impacts of human activities are often caused by factors that are beyond human control.