Sometimes, heavy weight on soft soil can result in collapse of ground, resulting in asinkhole<span>. </span>Sinkholes<span> can also </span>form<span> when the land surface is changed. Areas that have a bedrock made of limestone, salt deposits or carbonate rock are most susceptible to erosion and the </span>formation<span> of such holes.</span>
Answer:
the ducks have associated people with food handouts and so they become close.
Explanation:
Biodiversity hotspot
A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened with humans. Norman Myers wrote about the concept in two articles in “The Environmentalist” (1988), and 1990 revised after thorough analysis by Myers and others “Hotspots: Earth’s Biologically Richest and Most Endangered Terrestrial Ecoregions” and a paper published in the journal Nature
