Determine if the sentence is true based on the text below.
Alison Hargreaves is the first woman to have made the climb up the Everest with no artificial oxygen.

Nepali mountaineer Ang Rita Sherpa last week broke his own record of the number of climbing Mt. Everest.
no
Determine if the sentence is true based on the text below.
Hubble discovers black holes.

Hubble is helping astronomers precisely calculate the age of the universe by providing accurate distances to galaxies, an important prerequisite for calculating age. Hubble measures the distances to neighboring galaxies by finding accurate "milepost markers," a special class of pulsating star called Cepheid variables. These, in turn, are being used to calibrate more remote milepost markers.
no
Determine if the sentence is true based on the text below.
The world population is 5.6 billion.

The human species may be more than 100,000 years old but the bulk of its numerical growth has come in just the last few decades: 2.6 billion of today's 5.6 billion people have been born since 1960.
yes
Determine if the sentence is true based on the text below.
Language skills are a means of social integration.

It would create an underclass of illiterate and impoverished residents, deprived of basic skills, including English-language skills, necessary for the integration of immigrant children into our society and our work force.
yes