Quartz is an important mineral in mafic rocks like basalt and gabbro. The given statement is false.
<h3>What is mafic rocks?</h3>
Mafic minerals and rocks are silicate minerals or igneous rocks that are high in magnesium and iron.
The majority of mafic minerals are darker in color, and some of the most common rock-forming mafic minerals are olivine, pyroxene, amphibole, and biotite. Basalt, diabase, and gabbro are examples of common mafic rocks.
In geology, mafic rock is an igneous rock monopolized by the silicates pyroxene, amphibole, olivine, and mica.
These minerals are rich in magnesium and ferric oxides and contribute to the dark color of mafic rock.
Thus, the given statement is false.
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In marine environment, many animals confuse the plastic littering the oceans for food including sea turtles. Once in these animal bodies the plastic accumulates, and the chemicals can cause excess estrogen to be produced, which has led to discoveries of male fish with female sex organs. For sea turtles, the plastic blocks their digestive tract and the food that is trapped releases gases that render them buoyant, and unable to dive for food. The turtle was slowly starving because a single use plastic bag, which she had eaten, was blocking her digestive tract.
The plastic contains destructible and harmful agents that is not good for human and animals health.
Answer:
1. In the dispersive model, each strand of both daughter molecules contains a mixture of old and newly synthesized DNA, and in the semiconservative model, each new double helix consists of one old and one new strand.
Explanation: it helps to remember that dispersive means to disperse your DNA molecules! And semi conservative means you keep one of your old strands! Hope this helps!
