(c) Mention any one first aid material used when giving first aid for fractures. 47. In carrying out a...

(c) Mention any one first aid material used when giving first aid for fractures.
47. In carrying out a project task to find out conditions necessary for germination to take place, primary four pupils carried out the following steps:
(i) They placed cotton wool in each of the four tins and wetted it, except for 1 tin that remained dry.
(ii) In Tin 1, they placed seeds with wet cotton wool and kept it in a warm place.
(iii) In Tin 2, they placed seeds with wet cotton wool but covered them with oil.
(iv) In Tin 3, they placed seeds with wet cotton wool and put it in a cold place with ice cubes, and in Tin 4, they placed seeds with dry cotton wool in a warm place.
(a) State the condition for seed germination that the pupils were investigating by covering the seeds in Tin 2 with oil.
(b) Explain why the seeds in Tin 4 were unlikely to germinate, although they were kept in a warm place.
(c) Mention one change the pupils could make to the conditions in Tin 3 to encourage the seeds to germinate.
(d) Predict what would happen to the seeds in Tin 1 after a few days if the cotton wool remained wet.