When a strong magnet is brought near to a sample which is known to contain both iron and sulfur the iron and the sulfur are separated from one another. What type of material is this sample?
A) a compound
B) a homogeneous mixture
C) a heterogeneous mixture
D) There is insufficient information to answer.
C
Environmental & Atmospheric Sciences
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It has been estimated that humanity's global ecological footprint exceeds the Earth's biological capacity by about ____________________
Fill in the blanks with correct word
Environmental & Atmospheric Sciences
Any animal that eats other animals, living or dead, as a source of nutrients:a
ectotherm d. carnivore-scavenger b. endotherm e. herbivore c. carnivore
Environmental & Atmospheric Sciences
In the SI system of units the basic unit of volume is the cubic meter (m3). A volume of 1 m3 is equal to which of the following?
A) 1 L B) 10 L C) 100 L D) 1000 L
Environmental & Atmospheric Sciences
Reaching the replacement-level fertility rate means a quick halt to population growth.
Answer the following statement true (T) or false (F)
Environmental & Atmospheric Sciences