Quiz # 24



#1 The comparative ratio between humidity of certain area with the maximum limit is called

Relative humidity is the ratio of the current absolute humidity to the highest possible absolute humidity (which depends on the current air temperature). A reading of 100 percent relative humidity means that the air is totally saturated with water vapor and cannot hold any more, creating the possibility of rain.

#2 Which these are example of Igneous rock. 1.Granites 2.Basalt 3.Marble 4.Sandstones

Igneous rocks form from the cooling of magma – molten materials in the earth’s crust.

#3 Marbles are formed due to change in ______

Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. It is composed primarily of the mineral calcite (CaCO3) and usually contains other minerals, such as clay minerals, micas, quartz, pyrite, iron oxides, and graphite.

#4 Which rocks are called primary rocks.

Igneous rocks are formed from magma, the molten material from the center of the Earth. Igneous rocks begin the rock cycle, and are therefore called primary rocks.

#5 Loess is a ________

Loess is a clastic, predominantly silt-sized sediment that is formed by the accumulation of wind-blown dust. 

August 22, 2019

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