Answer:
<h2><em><u>Option a</u></em></h2><h2>
<em><u>Weathering</u></em></h2>
Explanation:
<h3><em>Weathering is a term which describes the general process by which rocks are broken down at the Earth's surface into such things as sediments, clays, soils and substances that are dissolved in water. </em></h3>
<u><em>As weathered products are carried away, fresh rocks are exposed to further </em><em>we</em><em>athering</em><em>.</em></u>
Answer:
10B has 18.9%
11B has 81.1%
Explanation:Please see attachment for explanation
The pebbles become smooth and even because of erosion. the waves from the sea rub against the pebbles this is erosion. x
Probably sodium Na because it has a similar atomic mass and number