True or false, please explain why for each As continents drift, they plow throug

Question

True or false, please explain why for each

As continents drift, they plow through the thinner ocean lithosphere like big rocky "ice breakers" and push it out of their way.

In general, rocks of the continental crust are less dense than rocks of the oceanic crust.

In general, seafloor sediments gradually thicken away from a mid-ocean ridge.

The energy released by an earthquake is very intense, and felt just as strongly in distant places, in accordance with its magnitude.

90% of all earthquakes occur below depths of 700 km.

The Richter earthquake magnitude scale is based on the total amount of energy released by the earthquake, as measured on a seismograph.

Unconsolidated, water-saturated soils or sediments provide good foundation materials for buildings and other structures because they absorb and dampen seismic vibrations.

The Milankovitch discontinuity separates Earth's mantle and outer core.

All atoms of the same element have the same atomic number.

Graphite and diamond have the same chemical composition and different crystalline structures.

Diamond and quartz are both minerals composed of a single element.

Mineral lustre is broadly classified as either metallic or opaque.

Colour is one of the most diagnostic properties of minerals.

As silicate tetrahedra link together in larger units, more oxygens are shared and the size of the negative charge per silicon decreases.

Calcite and dolomite are both carbonate minerals.

Rocks always weather chemically before they undergo mechanical weathering.

Sheeting parallel to quarry floors, and rock bursts on fresh cuts and tunnels, are caused by unloading.

The addition of a small amount of acidity dramatically increases rates of dissolution and chemical weathering.

The natural decomposition of limestone through chemical weathering mostly produces solid, insoluble calcium hydroxide.

Quartz weathers readily to aluminum-rich clay minerals.

Feldspars commonly decompose during weathering to clay minerals, silica, and soluble constituents.

Ferromagnesian minerals (like olivine and pyroxene) that crystallize at high temperatures in Bowen's reaction series are generally much less susceptible to chemical weathering than quaffz.

In detail, there is no geologic evidence that mid-ocean ridges spread at uniform rates or even symmetrically.

As dense seafloor is subducted, it penetrates the surrounding mantle and ruptures it causing the largest earthquakes.as the mantle fractures.

Calcite and halite react with dilute acids to evolve carbon dioxide.

Explanation / Answer

As continents drift, they flow through the thinner ocean lithosphere like big rocky "ice breakers" and push it out of their way.- True

In general, rocks of the continental crust are less dense than rocks of the oceanic crust.- True

In general, seafloor sediments gradually thicken away from a mid-ocean ridge.- true

The energy released by an earthquake is very intense, and felt just as strongly in distant places, in accordance with its magnitude.- false

90% of all earthquakes occur below depths of 700 km.- False

The Richter earthquake magnitude scale is based on the total amount of energy released by the earthquake, as measured on a seismograph.- true

Unconsolidated, water-saturated soils or sediments provide good foundation materials for buildings and other structures because they absorb and dampen seismic vibrations.- false

The Milankovitch discontinuity separates Earth's mantle and outer core.-false

All atoms of the same element have the same atomic number.-true

Graphite and diamond have the same chemical composition and different crystalline structures.- true

Diamond and quartz are both minerals composed of a single element.-true

Mineral lustre is broadly classified as either metallic or opaque.- false

Colour is one of the most diagnostic properties of minerals.-true

As silicate tetrahedra link together in larger units, more oxygens are shared and the size of the negative charge per silicon decreases.-true

Calcite and dolomite are both carbonate minerals.- true

Rocks always weather chemically before they undergo mechanical weathering.-true

Sheeting parallel to quarry floors, and rock bursts on fresh cuts and tunnels, are caused by unloading.- true

The addition of a small amount of acidity dramatically increases rates of dissolution and chemical weathering.-true

The natural decomposition of limestone through chemical weathering mostly produces solid, insoluble calcium hydroxide.- false

Quartz weathers readily to aluminum-rich clay minerals. false

Feldspars commonly decompose during weathering to clay minerals, silica, and soluble constituents.- true

Ferromagnesian minerals (like olivine and pyroxene) that crystallize at high temperatures in Bowen's reaction series are generally much less susceptible to chemical weathering than quartz.- False

In detail, there is no geologic evidence that mid-ocean ridges spread at uniform rates or even symmetrically- false

As dense seafloor is subducted, it penetrates the surrounding mantle and ruptures it causing the largest earthquakes as the mantle fractures.- true

Calcite and halite react with dilute acids to evolve carbon dioxide.- False

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