Examlex
Main-sequence stars many times the mass of the Sun produce their energy by the set of nuclear reactions called the CNO cycle.
Ammonia
A colorless gas with a characteristic pungent smell, consisting of nitrogen and hydrogen (NH3), used in the manufacture of fertilizers, explosives, and cleaning products.
Acupuncture
A form of alternative medicine and a key component of traditional Chinese medicine involving the insertion of thin needles into the body at specific points to alleviate pain and treat various health conditions.
Phantom Limb Sensations
Feelings that an amputated or missing limb is still attached and functioning, often accompanied by pain or discomfort.
Sensory Input
Information gathered by sensory receptors about internal and external changes.
Q9: Stars are born in<br>A)reflection nebulae.<br>B)dense molecular clouds.<br>C)HII
Q30: The number of sunspot cycles in a
Q34: The proton-proton chain needs high temperature because<br>A)of
Q41: Redshift values of _ to _ are
Q48: The free-fall contraction of a molecular cloud<br>A)can
Q52: If the Sun ceased to generate nuclear
Q61: Main-sequence stars many times the mass of
Q68: Nucleosynthesis<br>A)is the process by which energy is
Q69: How are astronomers able to determine that
Q122: The above visual wavelength image of the