1.
Between 1870 and 1890 the total population of tile United States---------.
2.
Intended to display the work of twentieth-century artists, ---- in 1929.
3.
The Earth has a tremendous amount of water, but--- in the ocean..
4.
-------- have sense organs in a canal known as the lateral line, which allows them to respond to changes in water pressure caused by nearby motion.
5.
Direct information on the chemical composition of the Moon became available in 1969 --- of the first Apollo mission to land on the Moon.
6.
--- completely harmless to the environment is very difficult and usually economically unsound.
7.
One of Ulysses S. Grant's first acts as President of the United States was to name tile Seneca chief Donehogawa --- of Indian Affairs.
8.
One of the most ancient arts,--- in different parts of the world.
9.
--- classified as a carnivore, the North American grizzly bear cats berries and even grass.
10.
Not only --- much bigger than any planet, but unlike the planets, it consists completely of gaseous material.
11.
Colloquialisms,---of informal spoken language, are often considered inappropriate for more formal written language.
12.
Her work in genetics won United States scientist Barbara McClintock ----- in 1983.
13.
--- usually thought to end in northern New Mexico, the Rocky Mountains really extend southward to the frontier of Mexico.
14.
The novelist Edith Wharton considered the Writer Henry James -----
15.
Ironically, the poet Henry Wadsworth Longfellow claimed he never liked teaching, although ---- a professor at Harvard University and taught for many years.
