Question

Forest is a purifier of
A. Air
B. Water
C. Soil
D. All of the above

Answer 1

Hint: The predominant terrestrial ecosystem of Earth are the forests and is distributed around the globe. A forest is a dense land or a complex ecosystem that supports a diverse range of life forms and has a high level of biodiversity. Trees in the forest control the environment of the surroundings which further influences the plants and animals living in the forest.

Complete answer:
Option A Air: The trees that are present in forests act as a giant green filter. All the trees release oxygen as a product of photosynthesis. By this way, forests purify air by increasing the amount of oxygen in the atmosphere and reducing carbon dioxide.
Hence option A is correct.
Option B Water: When rain falls, the soil gets eroded. This eroded soil then enters into water bodies and pollutes it. But trees in the forest slow down the activity of rain and rain water gets absorbed by the trees along with pollutants before it reaches the lake or sea. By this way, forest helps in purifying water.
Hence option B is also correct.
Option C Soil: Trees in forest help in stabilizing soils and preventing erosion. The forests are also home to many varieties of soil microbes, which together with insects, birds and mammals, plays an important role in the process of enriching and maintaining the soil quality.
Hence option C is also correct.
Option D All of the above: Since option A, B and C are correct, option D is the right answer for this question.

Hence, Option D. All of the above is the correct answer.

Note:
\[80\% \] of the world’s animals, plants, fungi and bacteria reside in forests in the whole world. Almost two-thirds of all plants, three-quarters of all birds, \[80\% \] of amphibians and \[68\% \] of mammals are included in this. According to the World-Wide Fund for Nature, the most biologically diverse and complex forests are the tropical rainforests, because rainfall is abundant and temperatures are consistently high.