In what regions of the atmosphere, the temperature increases with altitude and in which regions it decreases.

Explanation

To answer the question regarding the temperature variations with altitude in different regions of the atmosphere, we can break it down step by step:

### Step 1: Understanding the Atmosphere's Structure
The atmosphere is divided into several layers, each characterized by different temperature trends as altitude increases. The main layers are the troposphere, stratosphere, mesosphere, and thermosphere.

### Step 2: Analyze the Troposphere
- **Height**: The troposphere extends from sea level up to about 11 kilometers.
- **Temperature Trend**: In the troposphere, as altitude increases, the temperature **decreases**. This is because the Earth's surface absorbs heat from the sun and radiates it back, warming the air closest to the surface.
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