C. Answer these questions.
1. How do rocks change to soil?
2. Is the size of the particles same in different types of soil? Expl.
3. How will you show that soil contains moisture?
4. What are the different kinds of soil?
5. Why do farmers add manure to the soil?
HOTS questions
D. Think and answer.
1. Bhura is a farmer. He wants to grow wheat. What kind of soil wou
Answers
Answer:
1) Soil is formed through the process of rock weathering. Weathering is the breakdown of rocks into smaller particles when in contact with water (flowing through rocks), air or living organisms. Weathering can occur physically, biologically or chemically.
2) Soil particles are classified by size. The size of the soil particle gives texture to the soil and determines the amount of air and moisture that exists in the soil. The different particle sizes can also hold different amounts of nutrients within the soil.
3) Heat the test tube on a flame. after sometime you can see the drops on the surface on tube which shows that soil contains moisture. this happens because after heating the water or moisture in the soil evaporates and moves up and get condensed on the cooler inner walls of the upper surface of the boiling tube.
4) Sandy soil. Sandy Soil is light, warm, dry and tend to be acidic and low in nutrients. ...
Clay Soil. Clay Soil is a heavy soil type that benefits from high nutrients. ...
Silt Soil. Silt Soil is a light and moisture retentive soil type with a high fertility rating. ...
Peat Soil. ...
Chalk Soil. ...
Loam Soil.
5) Manure is an excellent fertilizer containing nitrogen, phosphorus, potassium and other nutrients. It also adds organic matter to the soil which improves soil structure, aeration, soil moisture-holding capacity, and water infiltration.
Bro/sis i am unable to answer your 6th question because it is incomplete
if you found this helpfull please mark as brainliest
Answer:
1) However, not all parts of a rock undergo expansion and contraction at the same rate, resulting in the formation of cracks. Gradually, these cracks cause the rocks to break down into smaller pieces. With time, these smaller pieces convert into particles and form soil.
2) . composition. Soil particles vary greatly in size, and soil scientists classify soil particles into sand, silt, and clay. proportions.