More than 90% on the crust is composed of silicate minerals. Most abundant silicates are feldspars<span> (</span>plagioclase<span> (39%) and alkali feldspar (12%)). Other common silicate minerals are </span>quartz<span> (12%) </span>pyroxenes<span> (11%), </span>amphiboles<span> (5%), micas (5%), and clay minerals (5%).</span>
Explanation:
By using sound absorbing substances we can reduce the echoes.
as we seen in the cinema hall...lol
I am not sure if its going to be right or wrong but I would pick either C or A
<span> Adenine, Guanine, Thymine, and Cytosine :)</span>
Answer:
A kilogram (kg) is stated to be 2.2 times heavier than a pound (represented as lbs). Thus, one kilo of mass is equal to 2.26lbs
