Biology
Yeast ferments glucose, producing a gas that inflates bread.
Carbon dioxide
Solid metal reacts with acid, producing a gas that burns with a pop.
Hydrogen
A car accelerates from 5 m/s to 25 m/s in 10 s. Calculate acceleration.
2
Seasonal wind causing wet summers and dry winters in India.
Monsoon
Archduke assassination triggered a chain reaction of alliances leading to which war?
World War I
Type of blood cell destroyed in HIV infection, leading to immune deficiency.
T-cell
Type of reaction when Fe replaces Cu²⁺ in CuSO₄.
Displacement
12 V battery drives 3 A current through a circuit. Calculate power.
36
River erodes outside bend, deposits inside bend. Name the feature formed.
Meander
Policy of conceding to Hitler to avoid war. Name the policy.
Appeasement
Xylem transport relies on tension created by water evaporating from leaves. Name this mechanism.
Cohesion
Element with atomic number 17 forms a pale green gas at room temperature.
Chlorine
A 2 kg object moves in a circle radius 0.5 m at 3 m/s. Calculate centripetal force.
36
Ocean current brings warm water to NW Europe, moderating climate.
Gulf Stream
Treaty forcing Germany to cede territory, reduce army, and pay reparations.
Versailles
Enzyme optimum at human body temperature denatures at 60°C. This illustrates which property?
Sensitivity
12 g of carbon reacts fully with oxygen. How many moles of CO₂ are produced?
1
Lens focuses parallel rays to a point 10 cm behind it. Name lens type.
Convex
Arid zone degraded by overgrazing and drought.
Sahel
Event where Bolsheviks seized power from Provisional Government in 1917 Russia.
October
Plant hormone controlling phototropism.
Auxin
Ionic compound conducts electricity only when molten because of?
Ions
A transformer with 100 turns in primary, 400 in secondary. 120 V input. Output voltage?
480
Convergent plate boundary creates deep trench. Name one example.
Mariana
Economic collapse starting in Wall Street 1929, causing worldwide unemployment.
Depression