Multiple choice

Which of the following statements is incorrect in relation to igneous rocks?

  1. Igneous rocks are also known as parent rocks.

  2. Igneous rocks do not have any strata.

  3. Igneous rocks are the most widely distributed rocks on the earth’s surface.

  4. Igneous rocks are less affected by chemical weathering.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement (1) is correct. Igneous rocks are the first one to be formed. All other rocks are formed by subsequent work of various rock forming processes and factors over these rocks. Thus, igneous rocks are also called parent rocks. Statement (2) is correct. Unlike sedimentary rocks, igneous rocks do not have any strata. Statement (4) is also correct. In the absence of pores in the igneous rocks, water does not penetrate in these rocks easily. Hence, igneous rocks are less affected by chemical weathering. Statement (3) is wrong. Sedimentary rocks are not the most widely distributed rocks on the earth’s surface.

Keep practicing — related questions