Science Homework #19: Year 11

Science Homework #19:  Year 11

Homework    Topic:
Question 1 Which pollutant causes buildings to look dirty? C1
Question 2 What does LCA stand for? C3
Question 3 Give one source of microwaves other than ovens. P2
Question 4 The maintainance of a constant internal environment is also know as __________? B2
Question 5 Which useful chemical can the acidic gas, hydrogen chloride be converted to by oxidation? C3
Question 6 Give a way of losing water other than sweating and urine. B2
Question 7 Burnt wood and urine were two traditional sources of which chemical? C3
Question 8 What is the only fool-proof method of producing less carbon dioxide? C1