Answer:
sí, el suéter está hecho de lana.
Answer:
a problem is researchable only if it can be scientifically proven
Explanation:
In science, a problem can be defined as a statement, condition, difficulty or question which is investigated by using the scientific method. In the scientific method, first is required to raise a possible explanation or 'hypothesis', which is based on objective inferences. Second, from this hypothesis, it is possible to make predictions which are subsequently proved or rejected by carrying out experiments and/or empirical observations in order to finally obtain results and conclusions about the researchable question.
22. Bring
23. Spend
24. Pay
25. Match
26. ride a horse
27. ride a bike
28. go shopping
29.go to the beach
