There is a need for sustainable practices in agriculture and animal husbandry".Mention thereason for their need.

The need for sustainable practices in agriculture and animal husbandry arises due to several reasons:

1. Environmental Protection: Conventional farming and animal rearing methods often lead to environmental degradation. For instance, excessive use of chemical fertilizers and pesticides in farming can lead to soil and water pollution. Similarly, animal husbandry often leads to overgrazing, which can cause soil erosion. Sustainable practices can help mitigate these environmental issues.

2. Resource Conservation: Sustainable practices in agriculture and animal husbandry aim to use resources more efficiently. This can help conserve vital resources like water and soil, ensuring their availability for future generations.

3. Economic Sustainability: Sustainable farming and animal rearing can also be more economically viable in the long run. They can reduce dependence on expensive chemical inputs and can also yield better quality produce, which can fetch higher prices.

4. Health Considerations: The use of chemicals in farming and the use of antibiotics in animal rearing can have adverse health effects. Sustainable practices can lead to healthier, more natural food products.

5. Biodiversity: Sustainable practices in agriculture and animal husbandry can help maintain biodiversity. They often involve the use of a wider variety of crops and animals, which can help preserve genetic diversity.

6. Climate Change: Sustainable practices can help mitigate climate change by reducing greenhouse gas emissions. For instance, organic farming methods can help sequester carbon in the soil, while sustainable animal rearing can reduce methane emissions.