What is the difference between a mineral and an element?
What will be an ideal response?
Answer: An element is a material consisting of only one type of atom. There are a few minerals composed of a single element, but the majority are composed of a combination of elements. As such, they are composed of more than one type of atom.
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In an experiment, the experimental group is:
a. not subjected to experimental error b. not exposed to experimental treatments c. maintained under strict laboratory conditions d. treated exactly the same as the control group, except for one independent variable e. statistically the most important part of the experiment
Type Ia supernovas involve a ________.
A. black hole B. planetary nebula C. neutron star D. white dwarf
Navigators can find their latitude in the northern hemisphere by measuring the angle from the northern horizon to the north celestial pole
Indicate whether the statement is true or false
____ has a negative charge and a mass about 1800 times small than a proton
a. A neutron b. An electron c. A molecule d. A nucleus e. An isotope