Consider the following statements with regard to igneous rocks: I. These rocks cannot be changed into metamorphic rocks. II. When molten material is cooled slowly at great depths, mineral grains tend to be very small. III. These rocks are known as primary rocks. Which of the statements given above is/are correct?

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…

Consider the following statements regarding the nature of rocks: I. Rocks are aggregates of one or more minerals. II. Granite is softer than soapstone. III. Gabbro is black and quartzite can be milky…

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…

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…

Which one among the following statements regarding igneous rock is correct?