Students can go through AP State Board 7th Class Science Notes Chapter 16 Forest: Our Life to understand and remember the concept easily.
AP State Board Syllabus 7th Class Science Notes Chapter 16 Forest: Our Life
→ Forests provide habitat to wildlife.
→ Forests help in causing rain.
→ They keep the surroundings clean.
→ Forests are an important source of timber, fuelwood, cane, resins, lac, oils, fruits, nuts, honey, etc.
→ Forests serve as the lungs of our earth.
→ Besides animals and plants, forests have been a home of people as well from ancient times.
→ People usually live in places in the forest where water is available.
→ We obtain various things and materials from the forest.
→ A forest is a good habitat for many plants and animals.
→ Forest helps in binding soil and protecting it from erosion.
→ People living in forests depend on its products for their livelihood.
→ Social forestry could help overcome deforestation.
→Destroying forests poses threat to the life of animals and plants living there as well as our own survival.
→ Orchard: A collection of fruit trees.
→ Plantation: Planting trees
→ Timber: Wood for buildings growing trees.
→ Firewood: Wood for fuel.
→ Soil erosion: Removal of topsoil by wind, water, or any other means.
→ Bunds: Constructs made to retain soil moisture
→ Deforestation: Cutting the forests
→ Tribe: A group of people, often of related families, who live together, sharing the same languages, culture, and history.
→ In 1730 AD about 350 Bishonois led by Amrita Devi sacrificed their lives to protect sacred green Kejari trees by hugging them when a king Wanted to cut those trees later this was led to the Chipko movement in history. Thereafter this practice has been carrying forwárd by people like Sunder Lai Bahuguna.
→ Savante Arrhenius:
Arrhenius was born in the year 1859. A Swedish chemist is well known for his theory of Acids and Bases. According to him, an acid is a substance that produces W ions in an aqueous solution where a base is a substance that produces OH– ions in an aqueous solution. He died in 1927.