CBSE Class 10

By what names is black soil also known as? In which regions are black soils formed and why? [CBSE Class 10 Social] (2)
How red and yellow soils are formed? Why do they look red? [CBSE Class 10 Social] (2)
Give any four characteristics of arid soils of India [CBSE Class 10 Social] (2)
What is majoritarianism [CBSE Class 10 Social] (4)
Write the balanced chemical equations for the following reactions and identify the type of reaction in each case. (i) In thermite reaction, iron (III) oxide reacts with aluminium and gives molten iron and aluminium oxide [Class 10 Science] (3)
How is brain in the human beings protected from injuries? [Class 10 Science] (2)
Explain the various problems faced by the Indian weavers in 19th century [CBSE Class 10 Social] (2)
How has the method of ‘artificial selection’ by humans helped in the evolution of different vegetables? [Class 10 Science] (1)
Explain the ways in which evolutionary relationships can be traced [Class 10 Science] (1)
What is speciation? List four factors that could lead to speciation [Class 10 Science] (1)
What are fossils? How are they formed? [Class 10 Science] (1)
Explain Mendel’s experiment with peas on inheritance of characters considering only one visible contrasting character [Class 10 Science] (1)
Describe Darwin’s theory of evolution? [Class 10 Science] (1)
What are the various evidences in favour of evolution? [Class 10 Science] (1)
How do Mendel’s experiments show that the traits may be dominant or recessive [Class 10 Science] (1)
In the following crosses write the characteristics of the progeny [Class 10 Science] (1)
Mention any two points of difference between acquired and inherited traits [Class 10 Science] (1)
Give the basic features of the mechanism of inheritance.? [Class 10 Science] (1)
Explain with reason why giraffe has long neck [Class 10 Science] (1)
Does geographical isolation of individuals of a species lead to formation of a new species? Provide a suitable explanation [Class 10 Science] (1)
List three factors that provide evidences in favour of evolution in organisms and state the role of each in brief [Class 10 Science] (1)
In a cross between plants with pink flowers and plants with white flowers [Class 10 Science] (1)
Name two homologous structures in vertebrates. Why are they so called? [Class 10 Science] (1)
“It is possible that a trait is inherited but may not be expressed.” Give a suitable example to justify this statement [Class 10 Science] (1)
Name the organism Mendel used for his experiments [Class 10 Science] (1)
Describe the contribution of Lamarck [Class 10 Science] (1)
Explain analogous organs and homologous organs [Class 10 Science] (1)
Mention three important features of fossils which help in the study of evolution.? [Class 10 Science] (1)
Planaria, insects, octopus and vertebrates all have eyes [Class 10 Science] (1)
“Fossils are related to evolution”, justify this statement. Give the two ways by which age of the fossils can be estimated? [Class 10 Science] (1)