Question 1: Convert 0.75 to a percentage using the moving point method. Show your steps.

Answer: 75%

Question 2: A rainforest area has a tree cover that is 0.42 in decimal form. Convert this to a percentage.

Answer: 42%

Question 3: Using the moving point method, convert 0.16 to a percentage.

Answer: 16%

Question 4: Plot the point corresponding to 0.33 on the number line representing 0 to 1, and label it as a percentage.

Answer: 33%

Question 5: A scientist measures the proportion of a certain pollutant in water as 0.055. Convert this to a percentage.

Answer: 5.5%

Question 6: In a study of bird populations, 0.085 of the birds are of a certain species. Convert this decimal to a percentage using the moving point.

Answer: 8.5%

Question 7: A forest has 0.67 of its area covered with trees. Show the conversion to a percentage and interpret what this means in terms of forest coverage.

Answer: 67%

Question 8: A habitat survey shows 0.045 of an area is wetlands. Convert this to a percentage and explain its significance to ecosystem health.

Answer: 4.5%

Question 9: If 0.23 of a conservation area is protected land, what percentage does this represent? Show your working.

Answer: 23%

Question 10: A researcher notes that 0.087 of a lake's surface is covered with algae. Convert this to a percentage and discuss its environmental impact.

Answer: 8.7%

Question 11: Identify and correct the mistake in converting 0.65 to a percentage: '0.65 is 6.5%'.

Answer: The correct percentage is 65%, not 6.5%.

Question 12: Challenge: A reforestation project aims to increase tree cover from 0.35 to 0.50. What are the percentage increases? Show all working.

Answer: Increase from 35% to 50%; the increase is 15%, which is approximately 42.86% of the original 35%.