AP BIOLOGY

ECOLOGY

HUMANS AND THE BIOSPHERE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which human activity would have the largest negative effect on biodiversity?
A
Reproducing at an uncontrolled rate
B
Developing wildlife sanctuaries
C
Passing legislation to protect an endangered species
D
Regulating industrial pollution
Explanation: 

Detailed explanation-1: -The main direct cause of biodiversity loss is land use change (primarily for large-scale food production) which drives an estimated 30% of biodiversity decline globally. Second is overexploitation (overfishing, overhunting and overharvesting) for things like food, medicines and timber which drives around 20%.

Detailed explanation-2: -Human activity can negatively impact biodiversity Human-induced changes to the environment-such as habitat loss, resource overexploitation, pollution, and climate change-often have major impacts on the organisms in ecosystems.

Detailed explanation-3: -Biggest threats to biodiversity, overall Across the board, changes in land and sea use account for the largest portion of loss, making up 50% of recorded threats to biodiversity on average. This makes sense, considering that approximately one acre of the Earth’s rainforests is disappearing every two seconds.

Detailed explanation-4: -Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

There is 1 question to complete.