Late blight of potato is a fungal disease. 

Aspergillus flavus is a pathogenic fungus with cosmopolitan distribution  which secretes a poisonous fluid called aflatoxin that causes contamination of food.

Shredded straw bed when mixed with low levels of additional nutrients serves as an excellent base for mushroom cultivation.

The botanical name of lotus is Nelumbo nucifera. Citrus reticulata is the botanical name of orange. The botanical name of tomato is Lycopersicus. 

Citrus canker is caused by bacterium.

The fertility of soil is reduced.

It reduces the moisture content in tea leaves.

In dicot seed, the outer layer is called testa and the inner layer is known as tegma.

A crippling deforming caused by methyl mercury poisoning that was first described in the in habitants of Mina Mata bay, Japan and resulted from their eating first contaminated with mercury industrial waste. Itai Itai Water contaminated with cadmium can cause itai itai disease, lung & liver cancer itai itai also known as over disease (a painful decrease of bones & joints) caused by water contamination by cad mium.

Ammonium sulphate reacts with water and forms ammonia and H₂SO₄ which increase the acidity of soil.