EVERYDAY SCIENCE

SCIENCE

ENVIRONMENTAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Examples of how humans negatively affect local ecosystems are
A
Building dams, deforestation (cutting down trees), adding point sources to nearby streams to allow for run-off, building roads and structures, and salting roads.
B
Creating laws to prohibit fishing from local streams.
C
Planting trees and other plants to attract native species.
D
Removing non-native species from the environment.
Explanation: 

Detailed explanation-1: -Impacts from human activity on land and in the water can influence ecosystems profoundly. Climate change, ocean acidification, permafrost melting, habitat loss, eutrophication, stormwater runoff, air pollution, contaminants, and invasive species are among many problems facing ecosystems.

Detailed explanation-2: -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.

Detailed explanation-3: -Habitat destruction, caused by deforestation, pollution, and other human activities, is the primary reason for this decline in biodiversity. As habitats are destroyed, species are losing their homes and their food sources, and they’re unable to adapt to the changes in their environment.

Detailed explanation-4: -Human actions resulting in changes in land use, nutrient cycling, hydrology, or pollution levels can reduce ecosystem resilience. For example, increased sediment loading and overharvesting of grazing fish can make coral reefs more susceptible to bleaching and die-offs.

There is 1 question to complete.