STUDY EDUCATION - MP Board Solutions

NCERT Class 10 Science Chapter 13 Our Environment Solutions Our Environment NCERT TEXTBOOK Solutions for Class 10 Science Question 1 Which of the following groups contain only biodegradable item ? (a) Grass, flowers and leather (b) Grass, wood and plastic (c) Fruit peels, cake and lime juice (d) Cake, wood and grass Answer: (a) Grass, flowers and leather. Question 2 Which of the following constitutes a food-chain ? (a) Grass, wheat and mango (b) Grass, goat and human (c) Goat, cow and elephant (d) Grass, fish and goat Answer: (b) Grass, goat and human. Question 3 Which of the following are environment friendly practices ? (a) Carrying cloth-bags to put purchases in while shopping (b) Switching off unnecessary lights and fans (c) Walking to school instead of getting your mother to drop on her scooter (d) All of the above Answer: (d) All of the above. Question 4 What will happen if we kill all the organisms in one trophic level ? Answer: The food chain would end and ecological balance wo...

NCERT Class 10 Science Chapter 8 Heredity and Evolution Solutions Heredity NCERT TEXTBOOK Solutions for Class 10 Science Question 1. A Mendelian experiment consisted of breeding tall pea plants bearing violet flowers with short pea plants bearing white flowers. The progeny all bore violet flowers, but almost half of them were short. This suggests that the genetic make-up of the tall parent can be depicted as: (a) TTWW (b) TTww (c) TtWW (d) TtWw Answer: (c) TtWW   Question 2. A study found that children with light coloured eyes are likely to have parents with light coloured eyes. On this basis, can we say anything about whether the light eye colour trait is dominant or recessive ? Why or why not ? Answer: This information is not complete. On the basis of this, it cannot be decided light colour trait is dominant or recessive. So it cannot be said until one does not know the nature of this trait in the parents. Question 3. Outline a project which aims to find the dominant coat colour ...

NCERT Class 10 Science Chapter 7 How do Organisms Reproduce? Solutions NCERT TEXTBOOK Solutions for Class 10 Science Question 1 Asexual reproduction takes place through budding in (a) amoeba (b) yeast (c) plasmodium (d) leishmania Answer: (b) Yeast Question 2 Which of the following is not a part of the female reproductive system in human beings ? (a) Ovary (b) Uterus (c) Vas deferens (d) Fallopian tube Answer: (c) Vas deferens Question 3 The anther contains (a) sepals (b) ovules (c) carpel (d) pollen grains Answer: (d) Pollen grains Question 4 What are the advantages of sexual reproduction over asexual reproduction ? Answer: (i) In asexual reproduction, the offspring are almost identical to their parent because they have the same genes as their parent. So, much genetic variation is not possible in asexual reproduction. This is a disadvantage because it inhibits the further evolution of the organism. (ii) In sexual reproduction the offspring, although similar to their parents, are not i...

NCERT Class 10 Science Chapter 6 Control and Coordination Solutions NCERT TEXTBOOK Solutions for Class 10 Science Question 1 Which of the following is a plant hormone? (a) Insulin (b) Thyroxin (c) Oestrogen (d) Cytokinin Answer: (d) Cytokinin Question 2 The gap between two neurons is called a (a) dendrite (b) synapse (c) axon (d) impulse Answer: (b) Synapse Question 3 The brain is responsible for (a) thinking (b) regulating the heart beat (c) balancing the body (d) all of the above Answer: (b) All of the above Question 4 What is the function of receptors in our body ? Think of situations where receptors do not work properly. What problems are likely to arise ? Answer: Receptors are specialised cells located in our sense organs like ear, nose, skin, tongue and eyes. The function of receptors is to detect information from the environment. For example, olfactory receptors detect smell. If receptors do not work properly, the information obtained from the environment will be delayed to reac...