Examlex
What property of a star can best be used to determine its temperature?
Oxygen
A chemical element crucial for life, involved in respiration processes and often used medically to support patients with breathing difficulties.
Carbon Dioxide
An invisible, scentless gas created when carbon and organic compounds are combusted and through the process of breathing, used by plants during photosynthesis.
Heart
An organ comprised of muscle in the majority of animals that circulates blood through the vessels of the circulatory system by pumping.
Angina
Chest pain or discomfort caused by reduced blood flow to the heart muscle.
Q8: Martian "blueberries" provide strong evidence for:<br>A) liquid
Q16: Which of the following effects must be
Q23: Arrange the following objects in order of
Q26: What properties of Cepheid variable stars are
Q30: Which of the following is part of
Q45: According to the Miller-Urey experiment,which of the
Q46: How could Isaac Newton have measured the
Q46: Which of the following is a function
Q57: The figure below shows the evolutionary path
Q64: Name two sources for the energy radiated