Environmental science ch 8 true or false

An ecosystem approach to sustaining aquatic biodiversity includes establishing protected areas in freshwater systems but not in marine systems

False

Clear cutting, which involves removing all the trees from an area, is the most sustainable method of logging

False

Grasslands have little value other than their use as grazing areas for livestock

False

The ecosystem approach focuses on identifying the most important species in a terrestrial ecosystem and giving it priority for protection

False

The worlds oceans are not yet being overfished, but the catch could become unsustainable within a few decades if fishing continues to increase

False

To preserve ecosystem services, policy makes must pay attention to human problems such as poverty

False

Tree farms are just as biologically diverse as old growth forests

False

biodiversity hotspots are areas in which diversity is high and no species are endangered or threatened

False

A buffer zone is a region within a protected area where human activities are not allowed

True

Forests are an important source of plants used in traditional medicines around the world

True

It is possible to partially reverse damage to ecosystems caused by human activities

True

Occasional surface fires, which usually only burn undergrowth and leaf littler on the forest floor, have a number of ecological benefits

True

One way to protect undeveloped lands from harm is to designate them as wilderness areas

True

Popularity is one of the biggest problems for many national parks in the United States

True

Some of the negative effects of overgrazing can be reduced using rotational grazing

True