____________________ occupy narrow niches

Fill in the blanks with correct word


Specialist species

Environmental & Atmospheric Sciences

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One of Edwin Hubble's discoveries is that the known universe is expanding. This means that

A) most all observable galaxies are moving away from each other. B) light rays bend as they near the event horizon of a black hole. C) light rays undergo acceleration as they travel vast distances. D) the mass of the universe is slowly dissipating.

Environmental & Atmospheric Sciences

A rock sample containing an isotope with a half-life of 28 million years has an initial mass of 184 grams. How much

daughter isotope is present after three half-lives? a. 23 grams b. 46 grams c. 69 grams d. 115 grams e. 161 grams

Environmental & Atmospheric Sciences

The terms geologic hot spots and biodiversity hot spots refer to similar areas with similar characteristics, therefore they are often used interchangeably

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

The defining characteristic of a desert is

A. low rainfall B. high temperatures C. shifting sand dunes D. all of the preceding E. none of the preceding

Environmental & Atmospheric Sciences