Understanding Fertilizers

The video tutorial explains the concept of fertilizers, starting with natural substances that enhance soil suitability for plant growth. It then covers chemical compounds designed to achieve similar effects, highlighting the role of fertilizers in agriculture.

What is the primary purpose of using fertilizers in agriculture?

• To increase the soil's water retention

• To make the soil more suitable for plant growth

• To enhance the color of the plants

• To reduce the number of pests

Which of the following is a natural fertilizer?

• Potassium chloride

• Ammonium nitrate

• Compost

• Urea

What is a characteristic of chemical fertilizers?

• They are used to repel insects

• They are less effective than natural fertilizers

• They are created to mimic natural fertilizers

• They are always organic

Which type of fertilizer is specifically designed to have the same effect as natural substances?

• Green manure

• Bio-fertilizers

• Chemical compounds

• Organic fertilizers

What is one benefit of using chemical fertilizers?

• They are cheaper than natural fertilizers

• They provide nutrients quickly to plants

• They improve soil structure

• They are environmentally friendly