Examen de Inglés de La Rioja (EBAU de 2017)

Polar bear

The polar bear ( ) is a carnivorous bear whose native range lies largely within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is a large bear, approximately the same size as the omnivorous Kodiak bear (Ursus arctos middendorffi). A boar (adult male) weighs around, while a sow (adult female) is about half that size. Although it is the sister species of the brown bear, it has evolved to occupy a narrower ecological niche, with many body characteristics adapted for cold temperatures, for moving across snow, ice and open water, and for hunti…

Fuente: wikipedia.org

Global warming

Global warming and climate change are terms for the observed century-scale rise in the average temperature of the Earth's climate system and its related effects. Multiple lines of scientific evidence show that the climate system is warming. Many of the observed changes since the 1950s are unprecedented in the instrumental temperature record which extends back to the mid 19th century, and in paleoclimate proxy records over a thousand years.

Fuente: wikipedia.org

Endangered Species Act of 1973

The Endangered Species Act of 1973 (ESA; 16 U.S.C. § 1531 et seq) is one of the few dozens of US environmental laws passed in the 1970s, and serves as the enacting legislation to carry out the provisions outlined in The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). Designed to protect critically imperiled species from extinction as a "consequence of economic growth and development untempered by adequate concern and conservation", the ESA was signed into law by President Richard Nixon on December 28, 1973. The U.S. Supreme Court found that "the plain i…

Fuente: wikipedia.org

World Wide Fund for Nature

The World Wide Fund for Nature (WWF) is an international non-governmental organization founded in 1961, working in the field of the wilderness preservation, and the reduction of humanity's footprint on the environment. It was formerly named the World Wildlife Fund, which remains its official name in Canada and the United States.

Fuente: wikipedia.org

Carbon dioxide

Carbon dioxide (chemical formula CO2) is a colorless and odorless gas that is vital to life on Earth. This naturally occurring chemical compound is made up of a carbon atom covalently double bonded to two oxygen atoms. Carbon dioxide exists in Earth's atmosphere as a trace gas at a concentration of about 0.04 percent (400 ppm) by volume. Natural sources include volcanoes, hot springs and geysers, and it is freed from carbonate rocks by dissolution in water and acids. Because carbon dioxide is soluble in water, it occurs naturally in groundwater, rivers and lakes, in ice caps and glaciers and a…

Fuente: wikipedia.org

Give Me Everything

"Give Me Everything" is a song written and performed by American rapper Pitbull, American R&B singer Ne-Yo, and Dutch DJ Afrojack, featuring additional vocals from American singer Nayer. Produced by Afrojack, it was released on March 21, 2011, as the second single from Pitbull's sixth studio album, Planet Pit (2011). Rolling Stone described the song as a "club-pop cut with a plaintive Ne-Yo chorus.".

Fuente: wikipedia.org

WhatsApp

WhatsApp Messenger is a freeware, cross-platform and end-to-end encrypted instant messaging application for smartphones. It uses the Internet to make voice calls, one to one video calls; send text messages, images, GIF, videos, documents, user location, audio files, phone contacts and voice notes to other users using standard cellular mobile numbers. It also incorporates a feature called Status, which allows users to upload photos and videos to a 24-hours-lifetime feed that, by default, are visible to all contacts; similar to Snapchat, Facebook and Instagram Stories.

Fuente: wikipedia.org