Name the term that can be given to Land that is suitable for crop production.
Arable land (from Latin arabilis, "able to be plowed") is, according to one definition, land capable of being ploughed and used to grow crops. In Britain, it was traditionally contrasted with pasturable land such as heaths which could be used for sheep-rearing but not farmland.
Out of the given options, which one refer to the land used for grazing cattle
Pasture (from the Latin pastus, past participle of pascere, "to feed") is land used for grazing. Pasture lands in the narrow sense are enclosed tracts of farmland,grazed by domesticated livestock, such as horses, cattle, sheep, or swine.
From the given options, pick out the meaning of the term Fallow Land
A fallow field is land that a farmer plows but does not cultivate for one or more seasons to allow the field to become more fertile again. The practice of leaving fields fallow dates back to ancient times when farmers realized that using soil over and over again depleted its nutrients.
Reading the following statement:
Land is used for various purposes like agriculture, forestry, mining, building houses, roads, setting up of industries etc.
Connect from the given list, the commonly used term with respect to the above sentence
The statement mentions all the various ways it can used like farming , mining and building houses.
A few physical factors that determine the use of land are given below. Pick out the one that is not a physical factor
The use of land is determined by physical factors such as topography, soil,climate, minerals and availability of water. Human factors such as population density, available of capital and technology are also important determinants of land use pattern.
The Land Use in a few selected countries according to their percentage area is given below. Analyse the table and answer the questions. Name the country with the highest land used for grazing cattle?
Pasture means land covered with grass and other low plants suitable for grazing animals, especially cattle or sheep.
The Land Use in a few selected countries according to their percentage area is given below. Analyse the table and answer the questions. Name the country that uses the maximum land for cultivation
Cropland is the land used for growing crops. therefore from the above table India has the highest value of cropland hence it uses the max land for cultivation.
Which one of the following statements is TRUE with respect to lands
Some important threats to the environment due to over exploitation of land resources are given below.
(i) Land degradation
(iii) Soil erosion
Which one of the following statements are TRUE and form important threats?
The correct option is D.
The factors responsible for degradation of land include excessive exploitation of land, deforestation,desertification, landslides, clearing fertile land for settlements, slashing and burning the trees for agriculture, abandoned mining sites and surface mining, toxicity in the landfill, untreated industrial effluents and concretisation.
Cite the most important reason as to why Land degradation, landslides, soil erosion, desertification etc are major threats to the environment, from the following options.
What does the term Land degradation refer to?
Select the term that refers to the Slashing and burning the trees for agriculture.
Jhum cultivation, also known as the slash and burn agriculture, is the process of growing crops by first clearing the land of trees and vegetation and burning them thereafter. The burnt soil contains potash which increases the nutrient content of the soil.
Identify the method that cannot be considered to ensure that the natural resources are not depleted, from among the common methods.
Inorganic fertilizers contain simple inorganic chemicals. It is vital that farmers know the exact combination of fertilizers to be used for a certain crop to avoid damage through excessive or improper use. While fertilizers help in plant growth,pesticides work as a safeguard against pests.
Identify this major threat to the environment from the image attached based on the following clues :
A mass movement of rock, debris or earth down a slope.
Often takes place in conjunction with earth quakes , floods and volcanoes.
A major disaster in the hilly terrains and is a major area of concern
A landslide is defined as the movement of a mass of rock, debris, or earth down a slope. Landslides are a type of "mass wasting," which denotes any down-slope movement of soil and rock under the direct influence of gravity.
Some important techniques to cope with Land slide are given below. Pick out the one that is not applicable.
Trees, grasses, and vegetation can minimize the amount of water infiltrating into the soil, slow the erosion caused by surface-water flow, and remove water from the soil. So decrease in vegetation can cause landslide.
From the attached image, identify the profile of Soil marked B
The soil is arranged in layers or horizons during its formation. These layers or horizons are known as the soil profile. It is the vertical section of the soil that is exposed by a soil pit. The layers of soil can easily be identified by the soil colour and size of soil particles. The different layers of soil are:
From the attached image of the profile of Soil, identify the one that has a fine texture, a high content of organic matter in humus and is vital for plant growth
Topsoil is the upper, outermost layer of soil, usually the top 5–10 inches (13–25 cm). It has the highest concentration of organic matter and microorganisms and is where most of the Earth's biological soil activity occurs. Topsoil is composed of mineral particles, organic matter, water, and air. Organic matter varies in quantity on different soils.
Name the term that can be given to the various layers in the soil after it is cut out like a slice of cake.
Soil is made up of distinct layers, called horizons. Each layer has its own characteristics that make it different from all of the other layers. These characteristics play a very important role in what the soil is used for and why it is important.
O HORIZON- This is the top layer of soil that is made up of living and decomposed materials like leaves, plants, and bugs. This layer is very thin and is usually pretty dark.
A HORIZON- This is the layer that we call "topsoil" and it is located just below the O Horizon. This layer is made up of minerals and decomposed organic matter and it is also very dark in color. This is the layer that many plants roots grow in.
B HORIZON- This is the layer that we call "subsoil" and it is located just below the A Horizon. This layer has clay and mineral deposits and less organic materials than the layers above it. This layer is also lighter in color than the layers above it.
C HORIZON- This is the layer that we call "regolith" and it is located just below the B Horizon. This layer is made up of slightly unbroken rock and only a little bit of organic material is found here. Plant roots are not found in this layer.
The major factors of soil formation are the nature of parent rock and __________
Factors that affect soil formation. Soils form from the interplay of five main factors namely Parent material, Time, Climate, Relief and Organisms. Parent material: Soils will carry the characteristics of its parent materialsuch as color, texture, structure, mineral composition and so on.
Analyse the given representation and complete the blank by filling it up an important factor of soil formation.
Time is one of those factors which determines the quality of soil formation.