Match the halves of sentences on the left with those given in the drop-list to make meaningful sentences.

Matching exercise

When roundwood is forwarded the forwarder operator may easily dig into the ground
You should also try to be aware of
If the GROT has been contaminated
If you can establish that only moss or humus or berry bushes have ended up in the GROT pile, but no rocks,
If you can establish that not only moss/humus or berry bushes, but also rocks, are present in the GROT pile
If you notice a high frequency of contamination,