EVERYDAY SCIENCE

SCIENCE

ENVIRONMENTAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Globally, the leading cause of biodiversity loss is
A
invasive species
B
poaching and overharvesting
C
pollution
D
habitat change and loss
Explanation: 

Detailed explanation-1: -Biodiversity loss is caused by five primary drivers: habitat loss, invasive species, overexploitation (extreme hunting and fishing pressure), pollution, climate change associated with global warming.

Detailed explanation-2: -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-3: -Biodiversity loss is caused by a range of different pressures, from habitat loss due to agricultural expansion, pollution or desertification to invasive alien species and climate change. At the root of every issue is one common thread: the unsustainable use of land and resources.

Detailed explanation-4: -Habitat loss has significant, consistently negative effects on biodiversity. Habitat loss negatively influences biodiversity directly through its impact on species abundance, genetic diversity, species richness, species distribution, and also indirectly.

Detailed explanation-5: -The loss of biodiversity among these critical natural resources threatens global food security and the development of new pharmaceuticals to deal with future diseases. Simplified, homogenized ecosystems can also represent an aesthetic loss.

There is 1 question to complete.