<span>The answer is True. A soil horizon is a cross-section of the physical layers that make up the soil. The soil horizons include such features as the organic layer, surface layer, subsoil, substratum and bedrock. Each horizon is unique and different depending on the land it is found on.</span>
2. Texas has more staff members than most states
Well, I believe it to be true. As dirt roads, when they are wet tend to be harder to traverse. It largely depends on the context of the question, however
The Yungas are located in the Andes Mountains
Answer: Serotonin is likely in short supply
Explanation: serotonin is a neurotransmitter produced by nerve cells that is involved in depression, appetite, and is crucial in maintaining a sense of well-being, security, etc. It is called the happy chemical because of it involvement in making one happy. An imbalance influences the mood of an individual.