Silicates<span> are </span>minerals<span> that </span>contain silicon<span> atoms bonded to </span>oxygen<span> atoms. The basic building block for all </span>silicate minerals<span> is called a tetrahedron, where one</span>silicon<span> atom is bonded to 4 </span>oxygen<span> atoms. </span>Silicate minerals<span> also often </span>contain<span> other </span>elements<span>, such as calcium, iron, and magnesium.</span>
Answer: The answer is A. Comparative
Explanation: The photo shows two different types of soil with the same type of worm. Therefore this it a comparative experiment. Trust me I got this question correct.
Answer:
Digestion of proteins is completed in the small intestine by proteolytic enzymes present in pancreatic and intestinal juices.
Explanation:
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The correct answer is b, antigens
