Which colour has the longest wavelength in the visible spectrum?
Anonymous Quiz
32%
Violet
17%
Green
10%
Orange
41%
Red
❤1
What does a barometer measure?
Anonymous Quiz
11%
Air temperature
64%
Atmospheric pressure
12%
Relative humidity
14%
Wind speed
Which cell produces antibodies?
Anonymous Quiz
28%
T lymphocyte
12%
Macrophage
55%
Plasma cell (B lymphocyte)
4%
NK cell
What are gravitational waves?
Anonymous Quiz
13%
Sound waves in space
67%
Ripples in spacetime caused by accelerating masses
7%
Radiation from black holes
14%
Solar magnetic field oscillations
❤1
Which vitamin is essential for blood clotting?
Anonymous Quiz
8%
Vitamin A
43%
Vitamin B12
8%
Vitamin C
41%
Vitamin K
Which scale measures locally felt earthquake intensity?
Anonymous Quiz
28%
Richter
18%
Mercalli scale
40%
Seismic barometer
14%
Seismoscope
What is biodegradability?
Anonymous Quiz
8%
Mechanical recyclability
84%
Decomposition by microorganisms
6%
UV radiation resistance
3%
Tendency to evaporate
What is the lightest element in the periodic table?
Anonymous Quiz
31%
Helium
21%
Lithium
40%
Hydrogen
7%
Beryllium
Which principle explains how aeroplanes fly?
Anonymous Quiz
28%
Archimedes' principle
15%
Magnus effect
36%
Bernoulli's principle
21%
Newton's third law
❤1
Which element dominates Jupiter's atmosphere?
Anonymous Quiz
5%
Oxygen
22%
Nitrogen
52%
Hydrogen and Helium
21%
Methane and ammonia
What is the liver's role in lipid metabolism?
Anonymous Quiz
11%
Produces insulin
71%
Synthesises bile acids and lipoproteins, and metabolises fatty acids
8%
Stores triglycerides long-term
9%
Converts lipids to glucose without intermediates
What does the second law of thermodynamics state?
Anonymous Quiz
27%
Energy of an isolated system is constant
49%
Entropy of an isolated system tends to increase
12%
Every action has an equal reaction
11%
F = ma
🥰3
How are igneous rocks formed?
Anonymous Quiz
12%
Compression of sediments
53%
Metamorphism by heat and pressure
32%
Solidification of magma
3%
Precipitation of minerals in water