1. There are a lot of empty milk packs which we can recycle.

2. There are a lot of empty milk cartons which we can recycle.

(Are both the same? Is 'milk carton' milk pack?

When I googled milk packs, it seemed to be almost any shaped cardboard container for milk. Cartons gives a very distinct image of the shape of it in my mind. I might be wrong, though. Wait for better answers, but that's my initial thought. I never really heard "milk packet" used and would think of powdered milk in a tear-open packet.

Sorry to help with the confusion.

I thought I answered this once before.

The term "milk carton" is the common term used in the US. I don't know if "milk pack" is used in other countries or not, but I had never heard it until you posted with this question!

PS -- Since "lot" is the subject of the sentence, the verb needs to be singular -- or rephrase. Use one of the following:

There's a lot of ...
OR
There are many ...

The terms "milk pack" and "milk carton" can refer to different types of containers used for milk.

1. "Milk pack" typically refers to a small plastic pouch or bag made of flexible material that contains milk or other liquids. These are commonly used in some countries as convenient single-use packaging for milk or other beverages. Milk packs are often discarded after use and can be recycled as part of the plastic waste stream.

2. "Milk carton" usually refers to a container made of paperboard (also known as cardboard) that is used to store and package milk. Milk cartons are typically larger than milk packs and are commonly used in many countries as a more sustainable alternative to plastic containers. These cartons are commonly recyclable, as they are made of a combination of paper and plastic, which can be separated during the recycling process.

So while both "milk pack" and "milk carton" are used to hold and package milk, they refer to different types of containers made from different materials. It's important to understand the specific type of packaging being referred to in order to determine how it can be recycled.