The wings of pterosaurs developed for fins of swimming marine reptiles. Indicate whether the statement is true or false


F

Environmental & Atmospheric Sciences

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The proportion of carbon dioxide in Earth’s atmosphere has been decreasing steadily for the past 200 years.

Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

Which EU country has recently established formal border controls along one of its borders?

A) Germany B) France C) Italy D) Belgium E) Denmark

Environmental & Atmospheric Sciences

Nucleic acid is to ________, as lipid is to ________.

A. Cellulose structure; genetic storage B. Cellular membrane structure; energy storage C. Genetic storage; cellular membrane structure D. Energy storage; genetic storage E. Energy storage; cellulose structure

Environmental & Atmospheric Sciences

In which nation or region do cities have the highest degree of urban sprawl?

A) Europe B) Canada C) Australia D) United States

Environmental & Atmospheric Sciences