Froggy Jumps Airscape QuizOnline version Test your knowledge on air and pollution by Rakhi Bilash 1 What is the primary component of Earth's atmosphere by volume? a Argon (Ar) b Nitrogen (N2) c Oxygen (O2) 2 Which gas is a major contributor to smog and health issues in cities? a Helium (He) b Nitrogen oxides (NOx) c Neon (Ne) 3 Which human activity most increases atmospheric CO2 levels? a Riding a bicycle b Burning fossil fuels c Planting trees 4 What term describes the vertical layer of the atmosphere where weather occurs? a Troposphere b Mesosphere c Stratosphere 5 Which pollutant is primarily removed by trees and plants through photosynthesis? a Sulfur dioxide (SO2) b Carbon dioxide (CO2) c Particulate matter (PM) 6 Which gas is commonly used as a greenhouse gas tracer in climate studies? a Oxygen (O2) b Carbon dioxide (CO2) c Hydrogen (H2) 7 What is PM2.5? a Gaseous pollutants only b Particulate matter with diameter ≤2.5 µm c Particulate matter with diameter ≤0.5 µm 8 Which indoor pollutant is a common concern in poorly ventilated spaces? a Ozone (O3) b Formaldehyde c Methane (CH4) 9 Which international agreement aims to reduce ozone-depleting substances? a Montreal Protocol b Kyoto Protocol c Paris Agreement 10 Which sunlight-driven process is essential for removing pollutants from the air outdoors? a Fermentation b Photochemical reactions (washout/dispersion) c Hydrolysis 11 What is the probability of an Aa x Aa cross producing aa offspring? a 50% b 0% c 25% 12 Which base pairs with Adenine in DNA? a Cytosine (C) b Uracil (U) c Thymine (T) 13 Which molecule carries amino acids during translation? a mRNA b tRNA c rRNA 14 Dominant alleles masking recessive phenotypes illustrate which concept? a Incomplete dominance b Codominance c Complete dominance 15 What chromosomal abnormality is associated with Down syndrome? a Trisomy 21 b Trisomy 18 c Monosomy X 16 Which enzyme unwinds DNA during replication? a RNA polymerase b DNA ligase c DNA helicase 17 Which condition violates Hardy-Weinberg equilibrium? a Evolution in a population b Random mating c Large population size 18 Which inheritance pattern shows both alleles expressed in heterozygotes? a Codominance b Incomplete dominance c Complete dominance 19 What are the three steps described by the central dogma? a Translation, replication, transcription b Replication, transcription, translation c Transcription, replication, mutation 20 Which phenomenon enables bacteria to gain antibiotic resistance via gene transfer? a Meiosis b Horizontal gene transfer c Mitosis
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