List of top Questions asked in ICSE Class X board

A sequence of DNA has 300 nitrogenous base pairs, of which 75 are Guanine. What is the number of Thymine in this sequence?
Suggest ways to reduce air pollution in urban areas.
Explain the impact of deforestation on the environment.
What are biodegradable and non-biodegradable wastes? Give two examples of each.
Discuss the role of individuals in protecting the environment.
Write two effects of the action of man on biodiversity of Earth.
How can private enterprises help in improving cities?
State any two advantages of Tree Planting.
What are the main aims of Integrated Plant Nutrient Management?
Write two important causes of air pollution.
What factors can change the demography of a country?
How can rainwater harvesting help in water conservation? Describe the method briefly.
What is incineration? What kinds of wastes are incinerated?
State five features of plants that can be used for energy plantations.
What do you mean by land reform legislation? Write three objectives of land reforms which helped the landless people.
What is GEF? How does GEF help in bringing about sustainability?
Discuss two advantages and three disadvantages of MNC's in developing countries.
What is nuclear fission? Why is nuclear fission useful to mankind?
How can Community Forestry be developed?
State five features of plants that can be used for energy plantations.
What do you mean by land reform legislation? Write three objectives of land reforms which helped the landless people.
Explain the role of Gene Bank in agricultural research.
"Secondary Cities are the emerging engines in the rapid pace of urbanization."
Write five steps that can be taken to develop Secondary Cities.
What is food aid? State the causes for the imbalance of food supply in the World.
List two differences between chemical fertilizers and organic fertilizers.