Final Answer:
This industry is known as the backbone of modern cultivation (d) Iron and steel industry
Step-by-step explanation:
The iron and steel industry is recognized as the backbone of modern cultivation. This industry plays a pivotal role in providing essential materials for agriculture, construction, infrastructure, and various other sectors. Iron and steel are key components in the manufacturing of tools, machinery, and equipment crucial for modern cultivation practices.
The machinery used in agriculture, such as tractors, plows, and harvesting equipment, often relies heavily on iron and steel components. Additionally, irrigation systems, storage facilities, and transportation infrastructure essential for the cultivation and distribution of crops are significantly dependent on the iron and steel industry.
The strength, durability, and versatility of iron and steel make them essential materials in the development of modern agricultural technologies. Therefore, the iron and steel industry serves as the backbone supporting the growth, efficiency, and sustainability of modern cultivation practices.
In summary, the correct answer is (d) Iron and steel industry, as it is integral to the development and advancement of tools and infrastructure crucial for modern cultivation.