Igneous rocks:

are also known as primary rocks

are relatively hard and impervious

do not contain any fossils

Which of the above statements is/are correct?

Question

Igneous rocks are also known as primary rocks: Correct. Igneous rocks are classified as primary rocks which are formed by solidification of molten rock. They have not been subject to rock cycle processes yet.
Igneous rocks are relatively hard and impervious: Correct. Due to the process of formation by cooling and solidification of molten material, igneous rocks are typically hard, dense and do not permit water or other fluids to pass through them easily. They are relatively impermeable.
Igneous rocks do not contain any fossils: Correct. Since igneous rocks form from molten rock and cool, they have not undergone sedimentation processes to collect and compact organic material to form fossils. So they typically do not have any fossils or remnant life forms.

GKToday Admin · Accepted Answer

1, 2 & 3

Igneous rocks are also known as primary rocks: Correct. Igneous rocks are classified as primary rocks which are formed by solidification of molten rock. They have not been subject to rock cycle processes yet.
Igneous rocks are relatively hard and impervious: Correct. Due to the process of formation by cooling and solidification of molten material, igneous rocks are typically hard, dense and do not permit water or other fluids to pass through them easily. They are relatively impermeable.
Igneous rocks do not contain any fossils: Correct. Since igneous rocks form from molten rock and cool, they have not undergone sedimentation processes to collect and compact organic material to form fossils. So they typically do not have any fossils or remnant life forms.

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