Percentage of the world's surface used for agriculture

The correct answer is option D, 35%.

Explanation:

Definition of agriculture
Agriculture is the practice of cultivating plants and rearing animals for food, fiber, medicinal plants, and other products used to sustain and enhance human life.

Calculating the percentage
To determine the percentage of the world's surface used for agriculture, we need to consider the total land area dedicated to agricultural practices. According to the Food and Agriculture Organization (FAO) of the United Nations, as of 2020, the total land area used for agriculture globally is approximately 4.9 billion hectares.

Calculating the total surface area of the Earth
The total surface area of the Earth is approximately 510 million square kilometers, which is equivalent to 510 million hectares.

Calculating the percentage
Now, we can calculate the percentage of the world's surface used for agriculture:

Percentage = (Agricultural land area / Total land area) * 100
Percentage = (4.9 billion hectares / 510 million hectares) * 100
Percentage ≈ 35%

Therefore, approximately 35% of the world's surface is used for agriculture in some form.

Importance of agriculture
Agriculture plays a crucial role in sustaining human life and the global economy. It provides food security, employment opportunities, raw materials for various industries, and contributes to the overall development of a nation. Sustainable agricultural practices are essential to ensure the availability of food for a growing global population while preserving natural resources and minimizing environmental impact.

Conclusion
Understanding the percentage of the world's surface used for agriculture helps to highlight the significant impact of agriculture on our planet. With approximately 35% of the Earth's surface dedicated to agricultural practices, it is essential to promote sustainable farming methods and ensure the efficient use of land and resources to meet the growing demands for food and other agricultural products.