13 public questions tagged with this topic.
Passage supports 'Human life would not survive'; text explicitly states this. Answer matches.
Ref: NCERT Class 10 English reading comprehension guide answers must be directly supported by passage details central theme explicit statements.
Passage supports 'Photosynthesis is the process that'; text explicitly states this. Answer matches.
Ref: NCERT Class 10 English reading comprehension guide answers must be directly supported by passage details central theme explicit statements.
Passage supports 'Photosynthesis absorbs all colors except'; text explicitly states this. Answer matches.
Ref: NCERT Class 10 English reading comprehension guide answers must be directly supported by passage details central theme explicit statements.
Passage supports 'the way that plants feed'; text explicitly states this. Answer matches.
Ref: NCERT Class 10 English reading comprehension guide answers must be directly supported by passage details central theme explicit statements.
Passage supports 'necessary.'; text explicitly states this. Answer matches.
Ref: NCERT Class 10 English reading comprehension guide answers must be directly supported by passage details central theme explicit statements.
Passage supports 'oxygen'; text explicitly states this. Answer matches.
Ref: NCERT Class 10 English reading comprehension guide answers must be directly supported by passage details central theme explicit statements.
**Ozone layer depletion** environmental concern related to increased UV-B reaching surface, causing skin cancer, cataracts, damage to crops and marine life, due to CFCs releasing Cl that catalytically destroys O₃, O₃ absorbs UV 200-320 nm, depletion increases UV transmission. The document states that the sun is an important source of ultraviolet light, though much of it is absorbed by the ozone layer. Using c = fλ, E₀/B₀ = c, I_d = ε₀ dΦ_E/dt, and spectrum classification λ = c/f, evaluation yields The sun, illustrating EM wave transverse nature and Maxwell's displacement current concept.
Ref: NCERT > Physics Book > Electromagnetic Waves > Environmental Effects - Ozone, Greenhouse and Safety
Chlorination of pentane favors the secondary position (C₂/C₄) due to stability, forming CH₃CHClCH₂CH₂CH₃ (2-chloropentane) as the major product.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Classification and Nomenclature and Isomerism of Haloalkanes
Solar energy is the primary source of energy in most ecosystems, as it drives photosynthesis and energy flow.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Ecosystem - Structure Components Stratification
The organism is a euglenoid. Euglenoids possess a flexible pellicle and two unequal flagella. They photosynthesise in sunlight but behave as heterotrophs by preying on smaller organisms when sunlight is unavailable.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Five Kingdom Classification and Kingdom Plantae Animalia
Deserts are commonly defined by chronic water limitation, and many receive less than about 250 millimetres of precipitation per year. Low rainfall, often combined with high evaporation, prevents continuous tree cover and limits primary productivity. Desert organisms show water-conserving adaptations: plants may use CAM photosynthesis, reduced leaves, succulent tissues, deep or widespread roots, and rapid life cycles after rain; animals may be nocturnal, burrowing, or produce concentrated urine. Not all deserts are hot. Polar and high-altitude deserts can be cold, demonstrating that aridity rat
Ref: Ecology: Concepts and Applications, Molles, 9th Ed., Ch. 2-3
The aphotic zone lies below the depth at which usable sunlight can support net photosynthesis. In many aquatic classifications, its upper boundary occurs where irradiance has fallen to about 1% of the value at the surface, although the exact depth changes with water clarity, season, and solar angle. Suspended sediments, dissolved organic matter, and plankton absorb or scatter light, so turbid lakes become aphotic at shallower depths than clear oceans. Because photosynthetic production is negligible there, organisms depend mainly on organic particles sinking from illuminated layers, dissolved o
Ref: Ecology: Concepts and Applications, Molles, 9th Ed., Ch. 2-3
