Question

How can people spread the seeds of these alien plants without knowing that they are doing this?

Answer 1

Answer:by the dress they are wearing .

Answer 2

Question - How can people spread the seeds of various alien plants without knowing that they are doing this?

Answer - Alien plants also known as invasive alien plants are the plants which do not grow in a particular ecosystem they are brought into. Their adaptation for survival in new environment may harm other already growing plants.

There are various ways of seed transport, some are listed below -

By clothes - Seeds may stick to clothes like socks, shoes, sweaters etc.

By cars - They may stick to any vehicle on the tire or by wind.

By animal feed - Animal feed is brought from fields which can transport seeds.