3178 public questions tagged with this topic.
Order ACBD creates coherent sentence with logical grammar sequence.
Ref: Purdue OWL sentence ordering guide explains logical sequence creates coherent sentence following grammatical structure meaning flow correctly.
'There is still no' means 'for' in context; usage confirms synonymy.
Ref: Cambridge Dictionary vocabulary context confirms word meaning compiled gathered collected from authentic manuscript sources accurately verified standard reference.
**Poynting vector** S = E×B/μ₀ gives energy flow (W/m²), magnitude S = E B/μ₀, average = E₀ B₀/(2μ₀) = intensity, direction of propagation, showing energy transport perpendicular to E and B. Visible light waves have wavelengths that the human eye’s photoreceptors can detect, triggering neural responses that allow perception of color and detail in the environment. Using c = fλ, E₀/B₀ = c, I_d = ε₀ dΦ_E/dt, and spectrum classification λ = c/f, evaluation yields Detectable wavelengths, illustrating EM wave transverse nature and Maxwell's displacement current concept.
Ref: NCERT > Physics Book > Electromagnetic Waves > Energy, Intensity and Momentum of EM Waves
**Greenhouse effect** IR absorbed by CO₂, H₂O, CH₄, warming Earth, excessive greenhouse due to fossil fuel burning raises temperature, EM waves role: Sun visible reaches surface, Earth emits IR trapped, altering energy balance, safety concern for climate change. The document explains that exposure to UV radiation induces the production of more melanin, which causes tanning of the skin. Using c = fλ, E₀/B₀ = c, I_d = ε₀ dΦ_E/dt, and spectrum classification λ = c/f, evaluation yields It induces production of melanin, illustrating EM wave transverse nature and Maxwell's displacement current conce
Ref: NCERT > Physics Book > Electromagnetic Waves > Environmental Effects - Ozone, Greenhouse and Safety
Hindlimbs: Muscular, elongated, and webbed with five digits. They propel the frog forward during leaping on land and paddling in water. Forelimbs: Short and unwebbed with four digits, designed to support the body and absorb landing impact.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Structural Organisation in Animals and Frog, Topic: Tissues, skeletal and organ systems.
More than 70% of all recorded species are animals, with insects being the most numerous. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.
Adenine pairs with thymine via two hydrogen bonds in DNA, contributing to the stability of the double helix. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Chemistry Textbook for Class XI and XII, Chapter: Some Basic Concepts, Structure of Atom and Periodicity, Topic: Mole concept, atomic models and periodic trends.
Robert May estimated the global species diversity to be around 7 million. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.
The partial pressure of oxygen (pOâ‚‚) in the alveoli is approximately 104 mmHg, facilitating its diffusion into the blood. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biology - Zoology portion covering relevant system and function.
A normal human male has 46 chromosomes, including one X and one Y sex chromosome. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.
Blood group AB is an example of co-dominance (both A and B are expressed) and multiple allelism (three alleles: IA, IB, and i). This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.
The **poly-A tail is added to the 3' end** of mRNA, not the 5' end. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.
