CBSE Class 12 - Informatics Practices - Java GUI Programming - Revision Tour-1 (Q and A) (#cbseNotes)

Java GUI Programming - Revision Tour-1
(Q & A)

Exercise Solutions of Sumita Arora Textbook


Q1: What is RAD?

Answer: Rapid Application Development (RAD) describes a method of developing software through the use of pre-programming tools or wizards. The pre-programmed tools or controls are simply dropped on a screen to visually design the interface of application.


Q2: What are RAD tools?

Answer: RAD tools are the tool that enables one to create applications in shorter time as compared to conventional language. Common examples of tools are:

NetBEans IDE: Provides RAD tools for Java GUI Application development
C++ Builder: RAD tool to develop Windows GUI applications in C++
Visual Basic: RAD tool to develop Windows based applications in BASIC language

CBSE Class 8 Science - Term 1 - Sample Question Paper (2017-18) (#cbsePapers)

SAMPLE PAPER OF SCIENCE FOR Term-1 (2017-18)       

CLASS-VIII

M.M-90                                                                                                              Time: 3 Hrs

General Instructions:
1. The question paper consists of 34 questions and is divided into four sections, A, B, C and D
2. All questions are compulsory.
3. Section A comprises question numbers 1 to 10. Each carries 1 mark
4. Section B comprises question numbers 11 to 20. Each carries 2 marks
5. Section C comprises question numbers 21 to 30. Each carries 3 marks.
6. Section D comprises question numbers 31 to 34. Each carries 5 marks.

SECTION-A  

Q1. Name the process of sowing seeds by scattering them in the field by hand.
Q2. Why are dried neem leaves put in the container in which food grains are stored?
Q3. What is the huge reserve stock of food grains held by government agencies called?
Q4. How is yeast a beneficial fungi?
Q5. Which antibiotic was discovered first and who discovered it?
Q6. Which phenomenon  disturbs the nitrogen cycle?
Q7. Are the handles and bristles of tooth brush made of same material?
Q8. Why are metals used to make bells and musical instruments?
Q9. How does pressure at a point within a liquid change with its depth?
Q10. Why  is a sharp knife more effective in cutting a fruit than a blunt life?

CBSE Class 8 - Science - Ch 18 Pollution Of Air and Water - Chapter Notes (#cbseNotes)

POLLUTION OF AIR AND WATER

(Chapter Notes)

Pollution is release of harmful substances in the environment thus causing threats to our ecosystem. Even non-harmful substances when precipitated in environment can be harmful. Land, water and air are the most important natural resources. Man made factors (agriculture, industrialization, transport etc.) are the primary reasons for the pollution.

According to World Health Organizations, five millions deaths occur in India due to pollution.

Pollution can be classified in many categories like:

• Land Pollution
• Air Pollution
• Water Pollution
• Noise Pollution
• Light Pollution

Here we discuss primarily about Air pollution and Water pollution.

Composition of Air

Air is a mixture of gases. 

By volume, Nitrogen:78%, Oxygen:21% and 1% (remaining gases like Carbon Di-oxide, Ozone, Argon, Methane etc.)

CBSE Class 6 -10 - English Grammar - Practice Jumbled Up Sentences (#cbseNotes)

 Practice Jumbled Up Sentences

Try online exercise

Jumbled Up Sentences or Rearrange words to form meaningful and grammatically correct sentence. These questions are pretty common in question papers.

You may try the following links to practice this exercise.

English Vocabulary - Single Word Substitutions (#cbseNotes)

English Vocabulary - Single Word Substitutions

1. Shy, timid, unwilling to face a situation

2. One who gives direction from behind the scene on a stage

3. One who gets pleasure in others trouble and pain

CBSE Class 10 - Biology - Heredity and Evolution - Origin Of Life On Earth (Concept Points) (#cbseNotes)

Origin Of Life On Earth (Concept Points)

① Most scientists believed that life arose from nonliving matter, mostly from gases. It originated in primitive form in the oceans of the earth.

② 4 billion years ago, the primitive atmosphere was formed. It had little oxygen and was likely thick with water vapor, along with compounds released by volcanic eruptions, such as nitrogen oxides, carbon dioxide, methane, ammonia, and hydrogen.

CBSE Class 12 - English - Flamingo - Ch1 - The Last Lesson (Question Bank) (#cbseNotes)

Lesson 1 - The Last Lesson (Question Bank)

Short Questions

1. Give 2 reasons why Franz thought of running away and spending the day out of doors?

2. What was more tempting than the rule of participles?

3. What was the bulletin board famous for?

4.  Describe the usual scene and how was it different that day?

5.  Describe the appearance of the master M. Hamel that day?