<h3><u>2 types of the wells</u></h3><h3><u>1</u><u>.</u><u>c</u><u>o</u><u>n</u><u>v</u><u>e</u><u>n</u><u>t</u><u>i</u><u>o</u><u>n</u><u>a</u><u>l</u><u> </u><u>w</u><u>e</u><u>l</u><u>l</u><u>s</u></h3><h3><u>2</u><u>.</u><u>s</u><u>i</u><u>d</u><u>e</u><u>t</u><u>r</u><u>a</u><u>c</u><u>k</u><u> </u><u>w</u><u>e</u><u>l</u><u>l</u><u>s</u></h3>
Explanation:
<h3>Hand-dug wells are excavations with diameters large enough to accommodate one or more people with shovels digging down to below the water table. The excavation is braced horizontally to avoid landslide or erosion endangering the people digging. They can be lined with stone or brick; extending this lining upwards above the ground surface to form a wall around the well serves to reduce both contamination and accidental falls into the well.</h3><h3> Until recent centuries, all artificial wells were pumpless hand-dug wells of varying degrees of sophistication, and they remain a very important source of potable water in some rural developing areas, where they are routinely dug and used today. Their indispensability has produced a number of literary references, literal and figurative, including the reference to the incident of Jesus meeting a woman at Jacob's well (John 4:6) in the bible and the "Ding Dong Bell" nursery rhyme about a cat in a well. </h3><h3><em><u>mark as brainliast</u></em></h3><h3><em><u>i</u></em><em><u>n</u></em><em><u>d</u></em><em><u>i</u></em><em><u>a</u></em><em><u>n</u></em><em><u> </u></em><em><u>g</u></em><em><u>e</u></em><em><u>n</u></em><em><u>i</u></em><em><u>u</u></em><em><u>s</u></em><em><u> </u></em><em><u>s</u></em><em><u>a</u></em><em><u>r</u></em><em><u>t</u></em><em><u>h</u></em><em><u>a</u></em><em><u>k</u></em></h3>
A incidência de raios solares está muito mais presente na região equatorial do que nos pólos, portanto, há um maior aquecimento dos oceanos nesta região, enquanto que perto dos pólos há um maior resfriamento.