Basaltic lavas ________.
a. are more viscous than rhyolitic lavas
b. contain more silica than rhyolitic lavas
c. typically contain a greater proportion of trapped volatiles than rhyolitic lavas
d. contain less silica than rhyolitic lavas

Respuesta :

Basaltic lava contain less silica than rhyolitic lava. 

In fact, basaltic lava contain the least amount of silica among the three types of lava. It is also the least viscous so it moves the fastest. They are high in iron and magnesium. 

The answer to your question is A. 

Answer:

The Correct Answer is D

Explanation:

Basaltic lava, or mafic lava, is melted rock magnified in magnesium and iron and silica exhausted.

Basaltic magmas are created by surpassing the softening period of the mantle each by combining energy, converting its creation, or reducing its pressure.

Basaltic magma is created through the dry partial melting of the mantle.