1. Which of the following is an igneous rock ?

Limestone

Slate

Marble

Granite

Answer: Granite

Explanation:

Granite is a light-colored igneous rock with grains large enough to be visible with the naked eye. It is created by the slow crystallization of magma below the surface of the Earth. It is composed mainly of quartz and feldspar with minor amounts of mica, amphiboles, and other minerals.


2. The “Mushroom Rocks’ are found in which type of geographical areas ?

Desert

Mountains

Coastal Plains

Plateau

Answer: Desert

Explanation:

‘Mushroom Rocks’ are usually found in desert areas.


3. Slate is a type of _____ rock ?

metamorphic

sedimentary

igneous

volcanic

Answer: Metamorphic

Explanation:

Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism.


4. The breaking up and decay of exposed rocks by temperature changes, frost action, plants, animals and human activity is called ?

Weathering

Smelting

deforestation

erosion

Answer: Weathering

Explanation:

Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering.


5. A scientific study of rocks that deals with their composition, texture and structure; their occurrence and distribution; and their original in relation to physicochemical conditions is called ___ ?

Geology

Lithology

Geomorphology

Petrology

Answer: Petrology

Explanation:

Petrology, scientific study of rocks that deals with their composition, texture, and structure; their occurrence and distribution; and their origin in relation to physicochemical conditions and geologic processes. It is concerned with all three major types of rocks—igneous, metamorphic, and sedimentary.


6. The breaking process of rocks due to wind, water and climate is known as _____ ?

Landslide

Weathering

Erosion

Solification

Answer: Weathering

Explanation:

Weathering is the breaking down or dissolving of rocks and minerals on the surface of the Earth . Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. Water, acids, salt, plants, animals, and changes in temperature are all agents of weathering.


7. Which of the following is NOT a metamorphic rock ?

Marble

Sandstone

Quartzite

Diamond

Answer: Sandstone

Explanation:

Sandstone is a sedimentary rock composed of sand-size grains of mineral, rock or organic material. Metamorphic rocks are formed from other rocks that are changed because of heat or pressure.


8. The scientific discipline concerned with the description of rock successions and their interpretations in terms of a general time scale is called ?

Paleontology

Stratigraphy

Mineralogy

Geodesy

Answer: Stratigraphy

Explanation:

Stratigraphy, scientific discipline concerned with the description of rock successions and their interpretation in terms of a general time scale. It provides a basis for historical geology, and its principles and methods have found application in such fields as petroleum geology and archaeology.


9. _________ is a metamorphic rock form characterized by banding caused by segregation of different types of rock, typically light and dark silicates ?

Gneiss

Quartzite

Slate

Marble

Answer: Gneiss

Explanation:

Gneiss is a metamorphic rock form characterized by banding caused by segregation of different types of rock, typically light and dark silicates. Rather than an indication of specific mineral composition, the term is an indication of texture. ... Gneiss can also form from gabbro or shale.


10. Rocks that are formed by the cooling of Magma are called ?

rock salts

metamorphic rocks

igneous rocks

sedimentary rocks

Answer: igneous rocks

Explanation:

Igneous rock, or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava.