A valley is an elongated low area often running between hills or mountains which will typically contain a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams over a very long period of time
D= glacial movement
Sinkholes are formed when the land surface above collapses or sinks into the cavities or when surface material is carried downward into the voids. Drought, along with resulting high groundwater withdrawals, can make conditions favorable for sinkholes to form
<em>If we lose the biodiversity then there will no possibility of life on the Earth. </em> <em>Without Plants and Animals no one will live.</em> <em>No life, If we lose the biodiversity</em>
Due to having high heat capacity of water, ocean has high heat capacity comparable to land. This is because of large mixing of ocean result in high heating. That is why land heat and cool more quickly than oceans.
and this high heat capacity cause the area near to coastal to have seasonal temperature range
