The correct answer is A. silica.
The amount of silica found in the magma determines the viscosity. The higher the silica in magma, the higher the viscosity of a magma. So the correct answer is silica. It is not among the other choices.
Answer:
Individual countries were creating an unfair trade barrier if they banned genetically modified crops.
Explanation:
I just took the 5.05 Human Impact on the Environment of Western Europe test
<h2>A: The mostly substituted fiber is <u>acrylic</u></h2>
Credit: <u>https://quizlet.com/169297076/apparels-and-textiles-flash-cards/ </u>