why is the ocean made of salt water and the lakes made of fresh water?
Oceans initially eroded away at bedrock and sediment that put salt into the water. Lakes and rivers, however, receive their water from rainfall. When the sun heats up the ocean, water evaporates and leaves the salt behind.
The Short Answer
Oceans initially eroded away at bedrock and sediment that put salt into the water. Lakes and rivers, however, receive their water from rainfall. When the sun heats up the ocean, water evaporates and leaves the salt behind. In gas form, the water travels back to the mainland where it cools off, becomes rain and supplies the lake with salt-free water. That water then travels back through the rivers, into the ocean and becomes salinated again.
Analysis
Key Concepts: Water, salt, rivers
This explanation focuses on water, salt, rivers and spans 75 words across 5 sentences. The depth is typical for Nature questions (category average: 71 words), striking a balance between accessibility and completeness.
What This Answer Covers
The explanation opens with: “Oceans initially eroded away at bedrock and sediment that put salt into the water.” It then elaborates by presenting a contrasting perspective, ultimately building toward a complete picture across 5 connected points.
How This Compares in Nature
Ranked #211 of 500 Nature questions by answer depth (top 43%). This falls in the detailed tier — above average depth. The explanation goes beyond surface-level but keeps things accessible.
Frequently Asked Questions
Is there a simple explanation for why the ocean made of salt water and the lakes made of fresh water?
Oceans initially eroded away at bedrock and sediment that put salt into the water. Lakes and rivers, however, receive their water from rainfall. When the sun heats up the ocean, water evaporates and leaves the salt behind. In gas form, the water…
How detailed is this explanation compared to similar Nature questions?
This is an above-average answer at 75 words, ranked #211 of 500 Nature questions by depth. The key concepts covered are water, salt, rivers.
What approach does this answer take to explain the ocean made of salt water and the lakes made of fresh wat?
The explanation uses contrasting perspectives across 75 words. It is categorized under Nature and addresses the question through 1 analytical lens.