General Q&A for Class 12 · Page 213
5,215 free answers in General for Class 12 students, across CBSE, ICSE and State boards.
Question & Answer
Questions
- GeneralClass 12All
Is Power BI difficult?
Power BI has a gentle learning curve, especially for beginners. The drag-and-drop interface makes creating basic visualizations straightforward, even without technical backgrounds. However, mastering advanced features like DAX (Data Analysis Expressions), complex data modeling, and performance optimization requires more time and practice. Most users can create their first dashboard within hours, but becoming proficient typically takes several weeks of consistent practice.
- GeneralClass 12All
Is Power BI the same as SQL?
No, Power BI and SQL serve different purposes. SQL (Structured Query Language) is a programming language used to query and manage databases. Power BI is a visualization and business intelligence tool that displays data insights. However, they work together you can use SQL to extract data from databases, and Power BI can visualize that data. Think of SQL as the language that retrieves your data, while Power BI is the canvas that paints the picture.
- GeneralClass 12All
Is Power BI in Excel?
Power BI is not inside Excel, but they're closely related. Excel includes Power Query, Power Pivot, and Power View features that share similar functionality with Power BI. However, Power BI is a separate, standalone application with more advanced capabilities for data visualization, sharing, and collaboration. You can use Excel as a data source for Power BI and even embed Power BI visuals in Excel, making them complementary tools rather than the same product.
- GeneralClass 12All
What is Power BI?
Power BI is a business intelligence platform developed by Microsoft that transforms raw data into interactive visualizations and insightful reports. It enables users to connect to multiple data sources, clean and model data, create dashboards, and share insights across organizations. Think of it as a powerful tool that turns spreadsheets and databases into visual stories that help businesses make data-driven decisions.
- GeneralClass 12All
What is the Indian Knowledge System in NEP 2020?
The National Education Policy (NEP) 2020 emphasizes integrating Indian Knowledge Systems (IKS) into curricula, preserving and promoting India's intellectual heritage. This includes: (1) ancient sciences, mathematics, and philosophy (2) traditional arts, crafts, and languages (Sanskrit) (3) indigenous health systems (Ayurveda, Yoga) (4) environmental knowledge and sustainable practices (5) cultural and ethical values from Indian traditions
- GeneralClass 12All
Where does the word "school" come from?
"School" (educational institution) derives from Greek "skholē" originally meaning "leisure, free time," later evolving to mean "place for learned discussion" because ancient Greeks spent leisure time in philosophical discourse. It passed through Latin "schola" (meeting place for teachers and students) and Old English "scol." The evolution reflects how education was initially a leisure-class pursuit. The modern meaning of formal educational institution developed gradually through medieval Euro
- GeneralClass 12All
Why is a group of fish called a school?
The word "school" for fish comes from Middle Dutch "schole" meaning "group or troop," unrelated to educational schools (from Greek "skholē" meaning leisure). The term describes fish swimming together in coordinated groups for protection, efficient feeding, and reproduction. The collective behavior resembles organized movement, hence "school." Other terms include "shoal" (more general grouping) and "school" (synchronized swimming). The terminology reflects the fish's collective, organized beha
- GeneralClass 12All
What does "have sentences 100" mean?
This phrase is unclear, but it likely means: "Write 100 sentences" (an exercise instruction) "Has 100 sentences" (a document contains 100 sentences) A grammatical error needing correction. If it's an assignment request, students should write 100 practice sentences demonstrating grammar rules, vocabulary, or sentence patterns. Context determines the exact meaning, but it most commonly refers to sentence-writing exercises.</li
- GeneralClass 12All
What is an example of interpretation in a sentence?
Interpretation means explaining or understanding the meaning of something. Example sentence: "Her interpretation of the poem focused on themes of loss and renewal." This shows how someone understood and explained a text. Another example: "The lawyer's interpretation of the law differed from the judge's interpretation," demonstrating how different people may understand the same thing differently. Interpretation involves analysis and explanation of meaning.
- GeneralClass 12All
How do I teach my child sentences?
Start with simple, concrete sentences: Model correct sentences in daily conversation Use visual aids with pictures and words Begin with subject-verb structures (The dog runs) Practice sentence expansion (The dog runs → The big dog runs fast) Use sentence-building games with word cards Read books together, pointing out sentences Ask children to describe pictures using sentences Correct gently by modeling
- GeneralClass 12All
Can you get headaches from burnout?
Yes, headaches are a common physical manifestation of burnout. Chronic stress causes: Tension headaches from muscle tightness in neck, shoulders, and scalp Increased cortisol triggering inflammatory responses, Disrupted sleep contributing to headache frequency Eye strain from prolonged concentration Dehydration and poor nutrition often accompanying burnout. These headaches are typically persistent, dull, and pressure-like. Managing stress
- GeneralClass 12All
How does sleep affect burnout recovery?
Sleep is critical for burnout recovery. Quality sleep: Restores physical and mental energy depleted by chronic stress Regulates stress hormones like cortisol Enhances emotional regulation and resilience Improves cognitive function, memory, and decision-making Supports immune system repair Facilitates neural restoration and neuroplasticity. Aim for 7-9 hours nightly, maintain consistent sleep schedules, create relaxing bedtime ro
- GeneralClass 12All
Am I experiencing burnout?
You may be experiencing burnout if you have: Emotional exhaustion: feeling drained and unable to cope, Depersonalization/cynicism: feeling detached or negative about work/responsibilities Reduced personal accomplishment: feeling ineffective or lacking achievement. Physical symptoms include chronic fatigue, insomnia, frequent illness, headaches, and appetite changes. Behavioral signs include procrastination,
- GeneralClass 12All
What are the signs of school burnout?
Signs of school burnout include: Chronic exhaustion despite rest Decreased motivation and academic performance Cynicism about school or learning Difficulty concentrating or remembering information Increased irritability or emotional outbursts Physical symptoms (headaches, stomachaches) Social withdrawal from friends and activities Perfectionism coupled with feelings of inadequacy Sleep disturbances<
- GeneralClass 12All
What is the medical term "epitheli/o"?
Epithelio (or epitheli/o) is a combining form referring to epithelium—the tissue covering body surfaces and lining internal organs and cavities. It comes from Greek "epi" (upon) and "thele" (nipple). Medical terms using this root include epithelial (relating to epithelium), endothelium (inner lining of blood vessels), and epithelioma (tumor of epithelial tissue).
- GeneralClass 12All
Which of the following suffixes means "lack of strength"?
The suffix "-asthenia" (from Greek "astheneia") means lack of strength or weakness. Examples include myasthenia (muscle weakness), neurasthenia (nervous exhaustion/weakness), and myasthenia gravis (severe muscle weakness disorder). The root "sthen-" relates to strength, so "a-sthen-" indicates its absence or deficiency.
- GeneralClass 12All
What is the medical term for the suffix "-rrhagia"?
The suffix "-rrhagia" (or -rhagia) comes from Greek "rhegnynai" meaning "to burst forth," and it signifies excessive or abnormal discharge or bleeding. Examples include hemorrhage (bleeding), menorrhagia (heavy menstrual bleeding), rhinorrhagia (nosebleed), and gastrorrhagia (stomach bleeding). It always indicates abnormal flow or discharge, typically of blood.
- GeneralClass 12All
What does the suffix "-acusis" mean in medical terms?
The suffix "-acusis" comes from Greek "akousis" meaning hearing. It appears in terms describing hearing conditions: presbyacusis (age-related hearing loss), hyperacusis (increased sensitivity to sound), anacusis (total deafness), and paracusis (distorted hearing). Any term ending in "-acusis" relates to the sense of hearing or auditory function.
- GeneralClass 12All
What does the suffix "-isch" mean in medical terms?
The suffix "-isch-" or "-ischemia" comes from Greek "iskhein" (to hold back) and "haima" (blood), meaning restriction or deficiency of blood supply. Terms like ischemic (relating to reduced blood flow), ischemia (inadequate blood supply to tissues), and ischemic stroke (caused by blocked blood vessels) all indicate impaired circulation or blood flow.
- GeneralClass 12All
Is "crit" short for hematocrit?
Yes, in medical contexts, "crit" is common shorthand for hematocrit—the proportion of red blood cells in blood, expressed as a percentage. Healthcare professionals frequently use "crit" in verbal and written communication: "The patient's crit is 38%" means their hematocrit is 38%. Normal ranges are approximately 38-50% for men and 34-45% for women.