Bihar’s geographical structure consists of rock systems. Match the rock systems with their descriptions : a. Dharwar rock system b. Vindhyan rock system c. Quaternary rock system d. Tertiary rock system 1. Created by the rapid deposition of alluvium by Himalayan and Peninsular rivers 2. Can be found in the West Champaran district 3. Part of the oldest Archaean rock system 4. Sandstone, limestone, dolomite, quartzite and shale are the main constituents of this rock system Select the correct answer using the codes given below.

Which of the following statements with reference to Salt Weathering is/are correct? 1. Salt crystallisation is the most effective of all the salt weathering processes. 2. Salt crystal growth is more…

Consider the following statements about the sedimentary rocks: 1. Sedimentary rocks are formed at the earth's surface by the hydrological system 2. The formation of sedimentary rocks involves the wea…

Identify the Mineral on the basis of the following characteristics relating to it : I. It is usually a greenish crystal. II. It is often found in basaltic rocks. III. Magnesium, iron and silica are i…

Consider the following pairs with reference to sedimentary rocks and the process of their formation: 1. Chert : Chemically formed 2. Geyserite : Organically formed 3. Shale : Mechanically formed

Consider the following statements regarding metamorphic rocks: 1. Ortho-metamorphic rocks are formed from igneous rocks. 2. Intense heat of the intruding magmas results in metamorphism of the surroun…