Are Tomatoes and Cucumbers Vegetables?

Neither tomatoes nor cucumbers are vegetables — they're fruits. The debate about whether a tomato is a fruit or not actually made it to the Supreme Court in 1883 in Nix v Hedden. The tomato was declared to be botanically a fruit but for all other purposes a vegetable.

More on fruits and vegetables:

The biggest difference between fruits and vegetables is the presence of seeds. Tomatoes, cucumbers, pumpkins and peppers all have seeds, so they are all technically fruits.

The strawberry is actually not a berry. It is closely related to the rose family, and the edible berry part is actually what is known as a "false fruit." The true berry of the strawberry is the little black specks that contain the seeds.

Eggplants and avocados are technically classified as berries.

What Is the World's Largest City?

The world's largest city by surface area is Hulunbuir, China, which is more than 100,000 square miles (about 250,000 square km) in area. To put it in perspective, that's bigger than 42 out of 50 American states. This is almost double the size of the next largest city of Jiuquan, also in China. The largest city outside of China is Altamira, Brazil, which is about 60,000 square miles (about 160,000 square km) in area.

More facts on super-sized cities:

The cities with the largest populations are Shanghai, Mumbai, Karachi, Delhi and Istanbul, all of which have populations of about 13 million people.

There are many contenders for the smallest city in the world, but most agree that it's either Hun, Croatia, with a population of 23; or Vatican City, which measures less than a fifth of a square mile (about a third of a square km).

The largest city in the U.S. by area is Yakutat City and Borough, Alaska, which is about 10,000 square miles (about 25,000 square km) in area. It is the eighth-largest city in the world by area. The largest U.S. city by population is New York, which has a population of about 8 million people.

How Many People in China are Over 65?

By 2015, there will be more than 100 million people in China who are more than 65 years old. By 2050, that population will raise to 300 million. At that time, a full one-fourth of the Chinese population will be older than 65.

More facts on aging populations:

Globally, by 2018, there will be more people older than 65 than those younger than 5. This will be the first time this age discrepancy will have occurred.

Though Japan had one of the youngest populations in the 1950s, the median age now is more than 40 years. By 2050, the median age of the Japanese population will exceed 50 years.
The two areas of the world that are aging the most rapidly are East Asia and Western Europe. Though the United States is still subject to the trend of aging, the immigration of many younger Latin Americans to the U.S. is keeping the population's average age down.

Source:Wise Geek.com