2020-2)
CLASS.V
SUBJECT- SCIENCE
NAME. Md. Sohar
M.M.
Q1. Answer the following Questions:
1. What do you understand by miscible and immiscible liquids?
2. How can you give immediate help to a person in case of a fracture
3. What is a balanced diet?
4. How do animals help in dispersal of seeds?
5. Difference between a physical change and chemical change?
6. Discuss the importance of soil to plants?
Answers
Answer:
1)The term is most often applied to liquids but also applies to solids and gases. For example, water and ethanol are miscible because they mix in all proportions. By contrast, substances are said to be immiscible if there are certain proportions in which the mixture does not form a solution.
2)Stop any bleeding. Apply pressure to the wound with a sterile bandage, a clean cloth or a clean piece of clothing.
Immobilize the injured area. ...
Apply ice packs to limit swelling and help relieve pain. ...
Treat for shock
3)a diet consisting of a variety of different types of food and providing adequate amounts of the nutrients necessary for good health
4)Animals can disperse seeds by excreting or burying them; other fruits have structures, such as hooks, that attach themselves to animals' fur. Humans also play a role as dispersers by moving fruit to new places and discarding the inedible portions containing the seeds.
5)Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions
6)Soils provide plants with essential minerals and nutrients. Soils provide air for gaseous exchange between roots and atmosphere. Soils protect plants from erosion and any other destructive physical, biological and chemical activity. Soils hold water (moisture) and maintain adequate aeration.
Explanation:
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