*Question*
Q: Most of the heat that enters the mesosphere comes from where? Read this paragraph and choose the correct option from the provided answers: There are very few gas molecules in the mesosphere. This means that there is little matter to absorb the Sun's rays and heat the air. Most of the heat that enters the mesosphere comes from the stratosphere below. That's why the mesosphere is warmest at the bottom. Choices: - Earth's surface - Exosphere - Troposphere - the stratosphere A:
**Answer**
the stratosphere

*Question*
Q: What is the name of the formation that regulates sleep and arousal? Read this paragraph and choose the correct option from the provided answers: Choices: - gelechioidea formation - epithelial formation - sleep-arousal formation - reticular formation A:
**Answer**
reticular formation

*Question*
Q: What weather phenomenon increases the rate of weathering in rock and soil? Read this paragraph and choose the correct option from the provided answers: Rainfall in an area is important because it influences the rate of weathering. More rain means that more rainwater passes through the soil. The rainwater reacts chemically with the particles. The top layers of soil are in contact with the freshest water, so reactions are greatest there. High rainfall increases the amount of rock that experiences chemical reactions. High rainfall may also carry material away. This means that new surfaces are exposed. This increases the rate of weathering. Choices: - temperature - earthquake - landslide - rainfall A:
**Answer**
rainfall

*Question*
Q: Spirals, spheres, and rods are examples of what distinguishing property of bacteria? Read this paragraph and choose the correct option from the provided answers: Bacteria come in many different shapes. Some of the most common shapes are bacilli (rods), cocci (spheres), and spirilli (spirals). Bacteria can be identified and classified by their shape. Choices: - function - color - organ - shape A:
**Answer**
shape