There are approximately ________ people on Earth.
A. 1.5 billion
B. 15 million
C.10 billion
D.6.7 billion
E.7.4 billion
Answer: E.7.4 billion
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A(n) ____________________ is a chemical used to control or kill populations of organisms that we consider undesirable such as insects, weeds, or rodents
Fill in the blanks with correct word
Reusing products can be a health hazard for the poor in developing countries who dismantle products to extract usable parts
Indicate whether the statement is true or false
What type of rock is shown in this photograph?
A. crystalline rock B. rock with minerals that are too small to see C. clastic rock D. None of these choices are correct.
What is the unit that is equivalent to raising the temperature of 1 gram of water by 1 degree centigrade?
a) Calorie b) Van der Waals c) Heat capacity d) Kilocalorie e) Joule