Bambooare a subfamily (Bambusoideae) of flowering perennial evergreen plants in the grass family Poaceae.Giant bamboos are the largest members of the grass family.The woody bamboos share characteristics with herbaceous (non-woody) grasses, notably leaf blades that have a distinctive internal organization of the tissues and which are basally narrowed to form a stalk-like connection with the leaf sheath.

Correct Option: B

Bambooare a subfamily (Bambusoideae) of flowering perennial evergreen plants in the grass family Poaceae.Giant bamboos are the largest members of the grass family.The woody bamboos share characteristics with herbaceous (non-woody) grasses, notably leaf blades that have a distinctive internal organization of the tissues and which are basally narrowed to form a stalk-like connection with the leaf sheath.

Alluvial soils are fertile soils composed of sediments deposited by rivers and the waves. However, they are usually deficient in nitrogen and humus. Nitrogen deficiency is the main limiting factor in crop production in all the alluvial soils except the calcareous and saline alkali alluvial soils. With suitable irrigation, fertilizers and proper agricultural practices, alluvial soils are generally very fertile.

Correct Option: B

Alluvial soils are fertile soils composed of sediments deposited by rivers and the waves. However, they are usually deficient in nitrogen and humus. Nitrogen deficiency is the main limiting factor in crop production in all the alluvial soils except the calcareous and saline alkali alluvial soils. With suitable irrigation, fertilizers and proper agricultural practices, alluvial soils are generally very fertile.

Terrace farming is the practice of cutting flat areas out of a hilly or mountainous landscape in order to grow crops. It involves growing crops on sides of hills or mountains by planting on graduated terraces built into the slope. On each level, various crops are planted.

Correct Option: B

Terrace farming is the practice of cutting flat areas out of a hilly or mountainous landscape in order to grow crops. It involves growing crops on sides of hills or mountains by planting on graduated terraces built into the slope. On each level, various crops are planted.

Cutting of trees (deforestation) and grazing of animals are some of the major contributors of soil erosion. Contour bunding is a traditional low-cost method of soil conservation suitable for sloping land; it promotes water retention and helps prevent erosion. Similarly, regulation of land use has a major impact on natural resources including water, soil, nutrients, plants and animals.

Correct Option: B

Cutting of trees (deforestation) and grazing of animals are some of the major contributors of soil erosion. Contour bunding is a traditional low-cost method of soil conservation suitable for sloping land; it promotes water retention and helps prevent erosion. Similarly, regulation of land use has a major impact on natural resources including water, soil, nutrients, plants and animals.

Podsols are ash-grey coloured soils that are found in high-latitude coniferous forest belt having very long cold winters, short cool summers and a moderate precipitation throughout the year. These soils are acidic, infertile and of limited value for agriculture. These are useful for dairying and mixed farming.

Correct Option: B

Podsols are ash-grey coloured soils that are found in high-latitude coniferous forest belt having very long cold winters, short cool summers and a moderate precipitation throughout the year. These soils are acidic, infertile and of limited value for agriculture. These are useful for dairying and mixed farming.