Soil Formation and Plant Growth Quiz

Is soil the top surface of the earth's crust?

Irish soils are old because they were formed before the last Ice Age.

Soil provides physical support for plant roots.

Igneous rock is formed when layers of sediments are compacted over millions of years.

Limestone is formed from shells and other materials containing calcium.

Metamorphic rocks are formed when intense heat or pressure is put on igneous rocks or sedimentary rocks.

Physical weathering due to frost can cause rocks to shatter and break.

Hydration is the addition of water to a rock mineral and typically occurs after oxidation where iron oxide is produced.

Living organisms such as plants, animals, and micro-organisms add humus to the soil when they die.

Soils developed under trees are generally less acidic.

Basin peats are developed in areas of high rainfall with low evaporation.

Biological decomposition of rocks is mainly caused by the physical weathering from burrowing animals.

Chemical weathering known as hydrolysis changes the physical characteristics but not the chemical characteristics of rock minerals.

Peat is rich in organic matter and is the main material produced from plant remains in the presence of oxygen.

Climate does not play a significant role in the weathering of rocks.