阅读短文，判断正误。

    Mr. Black has a bigfarm. There is a vegetable garden on the farm. You can see carrots, green beans, potatoes and tomatoes. On his farm, there are many animals, too. There are ducks, sheep, hens, horses and goats. Mr. Black likes his animals. He feels(感觉) happy. My friends and I often go to the farm and play with the animals. Some friends like horses and some like goats. I like sheep. We often help Mr. Black clean the farm.

中国是人类发源地之一，是世界上发现早期人类化石和遗物最多的国家。某学习小组准备暑假实地参观我国境内已知的最早人类遗址，他们应该去（    ）

关于地球自转的叙述中，正确的是（　　）

①地球绕地轴自西向东的旋转叫自转

②自转360°为一个恒星日，需23小时56分4秒

③从北极上空看，地球自转的方向是顺时针

④60°纬线处的角速度大约为赤道的一半．

下列家庭垃圾中，适合用堆肥法处理的是(　　)