Billion

The athlete signed a contract worth a billion dollars with a sports brand.

The smartphone manufacturer sold a billion units of their latest model in just a few months.

The distance between Earth and Alpha Centauri is over four billion miles.

The population of China is over one billion people.

The endangered species of African elephants have a population of less than half a billion.

The new medication helped to treat over a billion patients worldwide.

The Earth's age is estimated to be over four billion years old.

The country's debt has risen to over a billion dollars.

The universe is estimated to be around 13.8 billion years old.

Scientists estimate that the universe is several billion years old.

The extinction of the dinosaurs occurred around 65 billion years ago.

According to geologists, the Proterozoic Era lasted almost 2 billion years.

The Precambrian period lasted for more than two billion years.

According to a recent study, there are more than five billion birds in North America.