CBSE Class 10 Science Multiple Choice Questions(MCQs) & Answers
21 The process of the division of cell into several cells during reproduction in Plasmodium is termed as:
Answer: Multiple fission
23 The organs present in two organisms indicate that they are derived from the same ancestor are:
Answer: Homologous Organs
25 What could be the reason for the fossil of an organism to be found in the deeper layers of the earth?
Answer: The extinction of organism has occurred thousands of years ago
26 Which is the one characteristic of the parents that can be inherited by their children?
Answer: Snub nose
27 Which of the following determines the sex of a child?
Answer: The presence of a Y chromosome in a sperm
28 A cross between a tall plant (TT) and short plant (tt) resulted in progeny that were all tall plants as:
Answer: Tallness is the dominant trait
29 Which position of the object will produce a magnified virtual image, if a concave mirror of focal length 15 cm is being used?
Answer: 10 cm
30 An object is placed at 100 mm in front of a concave mirror which produces an upright image (erect image). The radius of curvature of the mirror is:
Answer: More than 200 mm