Population viability analysis Part A To make political decisions about the extent and type of forestry in a region it is important to understand the consequences of those decisions. One tool for assessing the impact of forestry on the ecosystem is population viability analysis (PVA). This is a tool for predicting the probability that a … more →

Climate change and the inuit The threat posed by climate change in the Arctic and the problems faced by Canada’s Inuit people A Unusual incidents are being reported across the Arctic. Inuit families going off on snowmobiles to prepare their summer hunting camps have found themselves cut off from home by a sea of mud, … more →

Greying population stays in the pink Elderly people are growing healthier, happier and more independent, say American scientists. The results of a 14-year study to be announced later this month reveal that the diseases associated with old age are afflicting fewer and fewer people and when they do strike, it is much later in life. … more →

Questions 14-18 Reading passage contains six Key Points. Choose the correct heading for Key Points TWO to SIX .from the list of headings below. Write the correct number, i-viii, in boxes 14-18 on your answer sheet. List of Headings: i. Ensure the reward system is fair ii. Match rewards lo individuals iii. Ensure targets are … more →

Questions 1-7 Reading passage 1 has seven paragraphs, A-G. Choose the correct heading for each paragraph from the list of headings below. Write the correct number, i-x, in boxes 1-7 on your answer sheet. List of Headings i. Not all doctors are persuaded ii. Choosing the best offers iii. Who is responsible for the increase … more →

Literate women make better mothers Children in developing countries are healthier and more likely to survive past the age of five when their mothers can read and write. Experts in public health accepted this idea decades ago, but until now no one has been able to show that a woman’s ability to read in itself … more →

Questions 27-30 The reading passage has six sections, Choose the correct heading for sections A-D from the list of headings below. Write the correct number, i-vii, in boxes 27-30 on your answer sheet. List of Headings: i. The role of video violence ii. The failure of government policy iii. Reasons for the increased rate of … more →

Ant intelligence When we think of intelligent members of the animal kingdom, the creatures that spring immediately to mind are apes and monkeys. But in fact the social lives of some members of the insect kingdom are sufficiently complex to suggest more than a hint of intelligence. Among these, the world of the ant has … more →

Endless harvest More than two hundred years ago, Russian explorers and fur hunters landed on the Aleutian Islands, a volcanic archipelago in the North Pacific, and learned of a land mass that lay farther to the north. The island’s native inhabitants called this land mass Aleyska. the ‘Great Land’; today, we know it as Alaska. … more →

Effect of noise In general, it is plausible to suppose that we should prefer peace and quiet to noise. And yet most of us have had the experience of having to adjust to sleeping in the mountains or the countryside because it was initially too quiet. Van experience that suggests that humans are capable of … more →