When ice melts into liquid water, a(n) _____________________ change has occurred.
Fill in the blank(s) with the appropriate word(s).
physical
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Which of these Latin American artist's paintings are known around the world
A. Mario Vargas Llosa B. Derek Walcott C. Frida Kahlo D. Gabriel Garcia Marquez
Which of the following is NOT among the reasons why world cities are typically targets of terrorism?
A) The perpetrators and their groups are not from urban areas B) The symbolic value — prestige is associated with penetrating sites of power. C) The impact value — targeting urban infrastructure has the potential to be much more destructive. D) The political and social reverberations are greatest and have the potential to spread the most fear.
Human beings avoid all but which of these regions?
A) cold lands B) dry lands C) warm lands D) wet lands E) high lands
Whether a hydrogen-based energy system is environmentally cleaner than a fossil fuel system depends on ________
A) the car driven B) governmental incentives for research C) the source of energy used to produce the hydrogen D) the source of oxygen used for the process