(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Biology

How does our skin provide protection to our body against the following?

Excessive loss of heat in severe cold ____________

How does our skin provide protection to our body against the following?

Entry of harmful ultra-violet rays ____________

Given below is a diagrammatic sketch of the vertical section of the human skin.

State one main function of each of the following parts:

Part 2 ___________

Part 3 ___________

Part 4 ___________

Part 9 ___________

Name any one of the above parts which has at least three functions.

The letter B in the name BCG vaccination stands for

Mention whether the following statement is true (T) or false (F).

Chicken pox and hepatitis are bacterial diseases.

Mention whether the following statement is true (T) or false (F).

Goitre is endemic in sub-Himalayan regions of India. 

Name the Following:
Category of pathogen that causes diseases like common cold and mumps. 

Distinguish between sewage and effluents.

List any three health problems in India.

Multiple Choice Type:

The most convenient reusable wastes are

List some of the common wastes produced in mining operation and mention how these can be reused.

Multiple Choice Type:

The most rapidly increasing and much harmful waste today is

Define electronic waste and list at least six items which come under this category.

Differentiate between degradable and non-degradable type of waste.

Give reason for the following : 

Broken glass utensils are a kind of non-degradable waste.

Give a reason for the following : 

Landfills are coming up fast near large cities.

Give a reason for the following : 

Why is municipal sewage is first separated into degradable and non-degradable wastes?

Mention whether the following statement is true (T) or False (F).

Some of the electronic wastes may contain valuable metals such as copper.

Match the items in Column I with as many times as possible in Column II.

Mention Whether the Following Statement is True (T) Or False (F).

Flyash is the gaseous waste of cement industry.