Question

why do human activity leads to disappearance of some living organisms?
because humans are high territorial organisms.
because humans overuse the environment where they are in.
because evolution happens quickly and humans survived changes in the environment.
because humans and other organisms compete with each other.

Explanation:

To determine why human activity leads to the disappearance of some living organisms, we analyze each option:

• Option 1: "Humans being high territorial organisms" does not directly explain species disappearance due to human activity. Territoriality alone isn't the main cause of other species vanishing.
• Option 2: "Humans overuse the environment" is a key reason. Overuse includes deforestation, pollution, overfishing, etc., which destroy habitats and resources needed by other organisms, leading to their decline or extinction.
• Option 3: Evolution speed and human survival of environmental changes don't explain why other organisms disappear. It focuses on human survival, not the impact on other species.
• Option 4: While competition exists, human - caused species disappearance is more about environmental degradation (overuse) rather than simple competition, as human impact is often on a larger scale (habitat destruction, pollution) rather than just competing for resources like other species do.

Answer:

B. Because humans overuse the environment where they are in.