Natural Sciences Flashcards
6 cards from real B.L.A.; occasionally A.L.B. Bachelor of Liberal Arts practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Natural Sciences flashcards as text
The theory of plate tectonics explains which geological phenomenon?
Answer: The movement of large sections of Earth's crust that causes earthquakes, volcanoes, and mountain formation
Plate tectonics describes how Earth's lithosphere is divided into moving plates whose interactions at boundaries cause major geological features and events.
Photosynthesis in plants converts which inputs into glucose and oxygen?
Answer: Carbon dioxide and water, using sunlight energy
Photosynthesis uses light energy to convert CO₂ and H₂O into glucose (for energy storage) and releases O₂ as a byproduct.
In astronomy, a 'light-year' is a unit measuring which quantity?
Answer: Distance — the distance light travels in one year
A light-year is a unit of distance equal to approximately 9.46 trillion kilometers, the distance light travels in one Earth year.
The periodic table of elements organizes elements primarily according to which property?
Answer: Atomic number (number of protons) with elements arranged by recurring chemical properties
The periodic table arranges elements by increasing atomic number, with elements sharing chemical properties appearing in the same vertical groups.
Which term describes the process by which radioactive atoms emit radiation and transform into different elements over time?
Answer: Radioactive decay
Radioactive decay is the spontaneous process by which unstable atomic nuclei lose energy by emitting radiation, transforming into more stable elements.
In biology, the term 'homeostasis' refers to which physiological process?
Answer: The tendency of living systems to maintain stable internal conditions despite external changes
Homeostasis is the ability of an organism to maintain a stable internal environment (temperature, pH, blood sugar) through regulatory mechanisms.