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Life on Earth depends on carbon. In fact, about 18.5 percent of a human body's mass is carbon. How carbon is taking in and given off through animals' breathing, the burning of fossil fuels, and more can be shown in the model known as the carbon cycle. Though this concept can be confusing, all readers have a chance to understand this concept through the text and simple diagrams in this book. Both struggling readers and those looking for review can find the most important components and vocabulary of the carbon cycle in low-level, accessible text.

Este diario original, sin censurar, de una adolescente juda̕ afincada en la ciudad neerlandesa de Rt̤erdam, arroja una nueva luz sobre la historia de los judo̕s en la Segunda Guerra Mundial. Una peripecia vital similar a la de Ana Frank pero

Capitana Marvel es la Heroína más poderosa del universo, pero no siempre ha sido así. Mucho antes de todo eso, Carol Danvers era una chica que soñaba con ser piloto. Conoce su historia en esta novela escrita en primera persona.

You don't have to live in Europe to be a soccer aficionado. Known as "football" to most people, soccer is a game of speed, skill, and intricate teamwork. Among the many inspirational athletes who make soccer such an exciting sport, few compare to Lionel Messi, the renowned professional footballer from Argentina. Messi's record-breaking skills on the field have earned him the adoration of soccer fans across the globe. In this biography, readers will be exposed to one of the greatest soccer players of all time: a man whose life story is just as thrilling as his incredible ability to score goals.