Solution:
The above statement is true.The substance farmer adds when the soil is basic is organic matter. Organic matter is anything that contains carbon compounds that were formed by living organisms. It covers various things like leaves, lawn clippings, stems, branches, moss, algae, lichens, any parts of animals, sewage sludge, droppings, sewage sludge, sawdust, insects, manure, earthworms and microbes. When the soil is basic, farmers add organic manure, which releases acids to neutralise the soil. The organic matter gets decomposed by the microbes present in the environment. Due to this decomposition mechanism, many chemicals get released into the soil and a lot of gas into the air, like methane gas.
