The Earth's structure - SS1 Geography Past Questions and Answers - page 2

An intrusive igneous rock forms beneath the Earth's surface and cools slowly, resulting in larger, visible crystals.

An example of a sedimentary rock is sandstone, which typically has a clastic texture with visible grains of sand cemented together.

Foliated metamorphic rocks have a layered or banded appearance with aligned minerals, while non-foliated rocks have a more uniform, granular texture.

The Earth's atmosphere absorbs harmful solar radiation, preventing it from reaching the surface, thus protecting life on Earth.

The movement of molten iron and nickel in the outer core generates the Earth's magnetic field, which shields the planet from harmful solar radiation and influences compasses.