CBSE Class 8 - Science - CH10 - Reaching Age of Adolescence (Worksheet)

Reaching Age of Adolescence 

(Worksheet)

1. Adolescents become capable of reproduction when their ___________ and ________ begin to produce gametes


2. In human females the reproductive phase of life begins at________ and lasts till the age of ________ years.


3. __________ no. of chromosomes are present in the human gametes.


4. __________ and _________ are sex chromosomes.


5. An ovum has __________ sex chromosome while a sperm has _________ sex chromosome.

Class 10 - Chemistry - Carbon and Its Compounds (NCERT In Text Activities Solved) (#cbsenotes)(#eduvictors)

Class 10 - Chemistry

Carbon and Its Compounds 

(NCERT In Text Activities Solved)

Activity 4.1
● Make a list of ten things you have used or consumed since the morning.

● Compile this list with the lists made by your classmates and then sort the items into the adjacent Table.

● If there are items which are made up of more than one material, put them into both the relevant columns.

Answer:

(C) -> Indicates carbon-based material.

CBSE Class 6-12 - English Grammar Worksheet - Verb Forms (#cbsenotes)(#eduvictors)

English Grammar Worksheet - Verb Forms

Fill in the blanks with suitable verbs from the options given in brackets.

1. One of the student in our class ______ an Apple phone. (own/owns)

2. Apple pie and custard _________ my favourite dish. (is/are)

3. Ten kilometres _____ a long way to walk (is/are)

4. Either Sanya or I _____ to blame (is/am/are)

5. Maya as well as Sanya ________ guilty. (was/were)

6. If I _____ rich, I would buy a ship. (was/were)

CBSE Class 5-12 : Download NCERT Books (#ncertbooks)(#eduvictors)

CBSE Class 5-12 : Download NCERT Books

NCERT assists and advises the central and state governments on educational topics related to high school education. This article discusses in brief the NCERT books. You can download them right here!

The NCERT books are exceptional recognised for their simplicity and setting out principles as they are without diving a great deal deep into more complex theories.

The entire listing of class-wise NCERT books along side their respective down load hyperlinks. Select those your syllabus needs and start studying right away!

Download Links for NCERT Books for CBSE Class 5

Subject	Book Name	Download Link
Science	Looking Around	Download
Mathematics	Math-Magic	Download
English	Marigold	Download

Class 10 - Science - Chapter 15: Our Environment (Study Points) (#cbsenotes)(#eduvictors)

Our Environment 

(Study Points)

Environment: 

It is the sum total of all external conditions and influences that affect the life and development of an organism, i.e., the environment includes all the physical or abiotic and biological or biotic factors.

Biodegradable Substances: 

These are those substances which are broken down into simpler, harmless substances in nature with due course of time by the biological processes such as action of microorganisms like certain bacteria.

Eg. Domestic waste products, urine and faecal matter, sewage, agricultural residue, paper, wood,

cloth and cattle dung.

Non-biodegradable Substances:

Non-biodegradable Substances are those substances which cannot be broken down into simpler, harmless substances in nature. These substances may be in solid, liquid or gaseous form and may be inert and accumulate in the environment or may be concentrated in the food chain and harm the organisms.

Eg. DDT, plastics, polythene bags, insecticides, pesticides, mercury, lead, arsenic, aluminium, radioactive wastes, etc.

CBSE Class 10 - History - Chapter 6: Work, Life and Leisure (Questions and Answers)(#cbsenotes)(#eduvictors)

Work, Life and Leisure 

(Questions and Answers)

Q1: Give two reasons why the population of London expanded from the middle of the eighteenth century.

Answer:

1. The city of London was a magnet for the migrant populations because of the job opportunities given by its dockyards and industries. By 1750, one out of every nine people of England and Wales lived in London. So, the population of London kept expanding through the eighteenth and nineteenth centuries.
2. During the first world war, London began manufacturing motor cars and electrical goods. This increased the number of large factories, which in turn increased the number of people coming to the city in search of work.

Q2: Explain any three problems faced by people who migrated to Bombay in the mid-nineteenth century.

CBSE Class 12 - Computer Science - SQL Commands and Functions - Summary(#cbsenotes)(#eduvictors)

SQL Commands and Functions 

Summary

SQL (Structured Query Language) is a standardized language used to create, maintain, modify, and query relational databases. When a user wants to get some information from a database file, he can issue a SQL query.

Types of SQL commands OR Processing capabilities of SQL:
① Data Definition Language Commands (DDL Commands)
② Data Manipulation Language Command (DML Commands)
③ Transaction Control Language Command (TCL commands)
④ Data Control Language (DCL Commands)


DDL Commands
All the commands used to create, modify or delete physical structure of an object like a table. e.g., Create, Alter, Drop.

DML Commands
DML contains commands that can be used to manipulate the database objects and to query the databases for information retrieval.
e.g Select, Insert, Delete, Update etc.

TCL commands
TCL include commands to control the transactions in a database system. The commonly used commands in TCL are COMMIT, ROLLBACK etc.

Data Control Language (DCL)
This language is used for controlling the access to the data. Various commands like GRANT, REVOKE etc are available in DCL.