QUE S T b) 1 A supermarket chain advertises that its plastic carrier- bags are ‘environmentally friendly’. These bags ar

Question

QUE S T
b)
1
A supermarket chain advertises that its plastic carrier-
bags are ‘environmentally friendly’. These bags are
made from polythene and contain added starch. A
student decided to find out if the claim is true. In the
investigation the student buried a piece of plastic from
the bag in a pot of soil and left it for one month. When
the plastic was dug up there were many small holes in
it.
The drawings show the plastic, as seen through a
microscope,
before and after being buried.
Starch
Hole
3
Plastic buried for 1 month
Plastic before being
buried
a) Explain, as fully as you can, the process that caused
the holes to appear in the plastic.​

in progress 0
Thu Nguyệt 1 year 2021-07-17T12:18:28+00:00 1 Answers 4 views 0

Answers ( )

    0
    2021-07-17T12:19:54+00:00

    Answer:

    The holes were formed from either.., bugs could have ate the starch and the polyethylene was not a deterrent?

    It may be biodegradable because it is edible to bugs? I’m not  sure that makes it completely biodegradable though.

    https://www.livescience.com/58810-caterpillar-biodegrades-plastic-bags.html

    copy and paste this link. Explains alot?

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )