You are here
š¬ Think about it
The ground under your feet looks plain and lifeless. But it is full of treasure — salt, metals, and nutrients for plants. Without it, nothing would grow. Let us dig into what the Earth's crust gives us.
What is the geosphere and what does it give us?
- The solid parts of Earth — rocks, soil and minerals — form the geosphere.
- It provides soil that helps plants grow.
- It gives minerals like salt, coal, oil and metals such as iron and copper.
- So it supports both ecosystems and human life.
Example:
The salt in your food and the iron in a tava both come from the Earth's geosphere.
Why is soil more than just dirt?
- Soil is rich in nutrients like nitrogen and potassium.
- Plants need these nutrients to grow.
- They come from the slow breakdown of rocks and dead remains.
What is geodiversity?
- Earth has many types of landforms, rocks and soils.
- This variety, with the processes that shape them, is geodiversity.
- It helps create unique habitats where different life can thrive.
Example:
Mountains, valleys and deserts are all part of Earth's geodiversity.
Important Points
- The geosphere is the solid part of the Earth.
- Soil holds nutrients that plants need to grow.
- Geodiversity creates unique habitats for life.
ā Test Yourself
-
What is the geosphere?
View Answer
The solid part of the Earth — rocks, soils and minerals. -
Name two nutrients found in soil.
View Answer
Nitrogen and potassium. -
Where do soil nutrients come from?
View Answer
The slow breakdown of rocks and remains of plants and animals. -
What is geodiversity?
View Answer
The variety of landforms, rocks and soils, with the processes that shape them. -
Name one metal we get from the Earth.
View Answer
Iron or copper.
Important Definitions
- Geosphere — the solid part of the Earth, including rocks, soils and minerals.
- Geodiversity — the variety of landforms, rocks and soils and the processes that shape them.
