Science, if its not that, its engineering
The leading natural resource in Nigeria is oil
Natural bridge<span>, </span><span>also called </span>natural arch<span>, naturally created </span>arch formation resembling a bridge. <span>Most </span>natural bridges<span> are </span>erosion<span> features that occur in massive, horizontally bedded sandstone or </span><span>limestone</span>M<span>ay be produced by entrenched rivers eroding through </span>meander<span> necks to form cutoffs. Still others are produced by exfoliation and may be enlarged by wind erosion. </span>
Cell D is a plant cell and Cell C is a animal cell
