Which technology do environmental scientists use to track the movements or polar bears and other vulnerable populations? a) geographic information system(gis) b)environmental dna(edna) surveillance c) global positioning system(gps) d) unmanned aerial system (uas)

c.  Global Positioning System(GPS)

c.  Global Positioning System(GPS)

Explanation:

Global Positioning Stem (GPS) collars have been great tools for monitoring the movement of animal populations in vulnerable situations, such as polar bears that are at risk of extinction. GPS collars help you closely monitor your polar bear movements, help broaden your understanding of their polar habits, and help you know how these bears are affecting the impacts of climate change.

Below is a picture of these necklaces with GPS:

GIS (GEOGRAPHICAL INFORMATION SYSTEM)

The GIS is a technique that is designed to capture the spatial and geographical data. It allows the analyses, store and manipulate the data obtained after the survey. This system can be used for surveying the entire forest area.  The features of the area are obtained as points, lines and raster images. The water bodies and trees can be observed as a typical colored image. Therefore, gives idea about the total area covered by the water body and the vegetation. It will tell if the vegetation has been removed by the human intervention. Hence, is useful method to track the health of the amazon rain forest.

C.

Explanation:

Environmental Scientists use Global Positioning System (GPS) to track the movements of polar bears and other vulnerable populations.

A GPS, is a global satellite system which can be used to track an object or a person, to navigate, etc.

GPS has become an integral part of today's life and if one is lost, we can find them with them help of GPS in their mobile phones. In the same manner, the environmental scientists track polar bears or any other vulnerable animal with the help of GPS.

c: geographical information system

D. Acoustics

Explanation:

Environmental scientists have some difficulty identifying gray wolves, because wolves tend to move away from humans. For this reason, scientists have developed a technique for identifying wolves by their individual howls. This technique is acoustics.

When they occupy a territory, they have a natural tendency to signal to other wolves. Using acoustics, scientists can record a wolf's howl and release this recording in the forest, when it does, other wolves can respond to the recording's howl and this will allow scientists to approach the territory where the gray wolves are .

The answer is C

Environmental DNA (eDNA) surveillance

Environmental DNA (eDNA) refers to DNA that can be extracted from environmental samples, such as water, soil or faeces, without first isolating any target organisms. It can also result from the decomposition of dead organisms. All living organisms, regardless of their size or ecology, leave traces of DNA in their environments, reflecting their current or past presence. eDNA is characterized by a complex mixture of nuclear, mitochondrial or chloroplast DNA, and can be intracellular (from living cells) or extracellular. It enables the detection of a species regardless of its life stage or gender. This technology has the potential to eliminate the need to capture or visually detect a target species, making it a particularly attractive alternative as a stand-alone assay for organisms that are hard to capture, difficult to collect, or that have small populations.

The correct answer is radio technology.

Explanation:

With the help of radio technology, the scientists track the endangered species. These comprise tags, chips, and radio collars. These devices are then tracked either by locating the radio waves discharged by these apparatuses with the help of receivers or through satellites via GPS technology. These instruments have been proved very beneficial in monitoring and tracking the organisms and their populations.

The scientists use the global positioning system (GPS)

APEX { GPS}