Answer: The A horizon is the top layer of the mineral soil horizons, often referred to as 'topsoil'. This layer contains dark decomposed organic matter, which is called "humus". The technical definition of an A horizon may vary between the systems, but it is most commonly described in terms relative to deeper layers.
Explanation:
Soil consists of different layers that are often called horizons. There are three main soil horizons called A, B and C as well as an organic layer (O) on top of the soil (O) and bedrock (R) below: ... It is only between 5 to 10 inches thick and consists of organic matter and minerals.
Answer:
The rabbit hutch should contain a watering device (bowl, bottle), feeding bowl, plentiful hay, bedding (if using, it can be hay or straw) and a litter box.
Coloration, Darwin theorized dominant colors in animals would continue to help ensure survival. For example a white tail deer normally blends in with the trees and bushes they live in, but if they were white they would stand out and be easier to hunt, causing them to die off
Answer:
Calcium
Explanation:
Between Neon and Calcium, neon will be more stable compared to the calcium.
Neon belongs to the group of elements on the periodic table called the noble gases. These are the most stable elements and they do not react with other elements.
- Calcium on the other hand is reactive
- It requires a loss of two electrons to attain stability.
- Therefore, it is a more reactive element.