请高手帮我分析一下以下几个英语句子的意思与句子成分与其中的词组。

Question

1：A large amount of carbon dioxide that we put into the atmosphere every year comes from the process of making and eating food.
2: A cow has to be fed and raised on farmland.
3: Most of cow will not even be used for meat that people eat.
4: Since Americans eat twice as much beef as is advised by US Department of Agriculture.
5: At least in terms of the amount of greenhouse gases released.

Answer 1

1. 我们每年排入大气的大量二氧化碳来自制造和食用食物的过程。A large amount of大量，put into排入，放入，come from来自。
2.母牛只得在农场上喂养。
3.多数母牛甚至没被用来供人们食用。be used for 被用来。
4. 既然食用的牛肉是美国农业局建议的两倍。（本句不完整）as much as 和……一样多
5. 至少就被排放的温室气体量而言。（本句不完整）At least至少。in terms of就……而言