Answer: Most rocks contain SiO2 (silica), which is a compound of silicon and oxygen that forms 74%
(C. The dinosaurs became extinct after the Cretaceous time period, after living on Earth for about 165 Million Years
The answer is B.
<span>The </span>vacuole<span> in </span>cells<span> have three </span>main functions<span> which are to provide the plant with support or rigidity, a storage area for nutrients and waste matter and can decompose complex molecules, according to British Society for </span>Cell<span> Biology. In plant</span>cells<span>, the </span>vacuole<span> also can store water.</span>
The best answer is :
It is designed to be thrown to someone in trouble.
Type IV PFD refers to the fourth<span> level of U.S.</span><span> Coast Guard's (USCG) classification </span>for private<span> flotation devices. </span>sort<span> IV PFDs are </span>carried<span> on boats as </span>a tool which will<span> be thrown to a drowning person. S</span>ort<span> 4 PFDs </span>also is referred to as<span> a throwable </span>float<span> or </span>sort four<span> PFD.</span>