How much do you know(2)

I know that.
5.Where is the tallest tree?
A:The tallest tree is in North America. It's 100 meters tall.

6.Which has the most countries?
A:Africa. There are fifty-three countries in Africa.

7.Which city has more people?
A:Mexico. It's has over 23 millions people.

8.Which cause more global warming?Cars or cows?
A:Cars.They produce 80 percent of all greenhouse gases.


My family went to 新竹 this afternoon.We parper to visit my daughter and my brother-in-law tomorrow.