Tag: evs

As rock becomes broken down through a variety of processes, such as weathering and erosion, the particles become ground smaller and smaller. The four main bases in a soil are Nitrogen, Phosphorus, Iron and Potassium.

Explanation: Virtually all soil profiles are composed of a number of distinctive layers, termed horizons, interpretation of which is the key to understanding how the soil has formed.

Soil provides the physical medium, water, and mineral nutrients necessary for crop growth, making it the most fundamental component for agriculture.

Soil is considered a renewable resource because it is continuously formed through weathering and biological processes, although the rate of formation is slow.

The oxygen cycle describes the movement of oxygen within and between the three main reservoirs of the Earth: the atmosphere, the biosphere, and the lithosphere.

The Earth's atmosphere is composed of approximately 78% nitrogen, 21% oxygen, and 1% other gases including argon and carbon dioxide.

Joseph Priestley is widely credited with the discovery of oxygen in 1774 after his experiments with mercuric oxide.

Burning of fossil fuels is a combustion process that consumes oxygen from the atmosphere and releases carbon dioxide and water vapor. Therefore, it liberates carbon dioxide, not oxygen.

Plants perform photosynthesis, which consumes carbon dioxide and releases oxygen. Deforestation reduces the number of plants available to produce oxygen.