Tornado reaches:

Options

A. From the oceans to the plane
B. From the ground to the sky
C. From the sky to the ground
D. None of these

Explanation

To answer the question "Tornado reaches," we need to understand the characteristics of tornadoes, particularly how they relate to air movement and expansion due to heating.

### Step-by-Step Solution:

1. **Understanding Tornado Formation**: Tornadoes are formed from severe thunderstorms, particularly supercells. These storms have strong updrafts of warm, moist air that rise rapidly.

**Hint**: Think about the conditions that lead to the development of a tornado.

2. **Role of Heating**: When the sun heats the Earth's surface, the air above it also warms up. Warm air is less dense than cold air, so it rises. This rising air can create a low-pressure area at the surface.

**Hint**: Consider how temperature differences can affect air movement.

3. **Air Expansion**: As the air warms, it expands. This expansion decreases the density of the air, allowing it to rise more easily. The rising warm air can lead to the development of strong updrafts.

**Hint**: Remember that heated air takes up more space than cooler air.

4. **Formation of a Tornado**: If the conditions are right, the updrafts can begin to rotate, forming a tornado. The rotation is often influenced by wind shear, which is the change in wind speed and direction with altitude.

**Hint**: Think about how different wind patterns can contribute to the rotation of air.

5. **Characteristics of Tornadoes**: Tornadoes can reach high speeds and can cause significant damage. They are characterized by a funnel-shaped cloud that extends from a thunderstorm to the ground.

**Hint**: Consider what makes tornadoes dangerous and how they are visually identified.

6. **Conclusion**: Tornadoes reach their peak intensity when the conditions of warm, moist air and wind shear are optimal, leading to the formation of a rotating column of air.

**Hint**: Reflect on the overall process from heating air to the formation of tornadoes.

### Summary:
Tornadoes are formed from the rapid rising of warm, moist air due to heating, which leads to air expansion and the development of strong updrafts. When these updrafts rotate under certain conditions, they can form a tornado.