Seeding clouds to make rain B1+ multiple choice reading

What was Arlen Huggins able to do through cloud seeding?

• Decrease the size of hailstones.

• Decrease the amount of hail.

• Increase the amount of snow.

• Increase the chance of rain.

What is the relationship between cloud seeding, precipitation and fog?

• You are more likely to get snow than rain when you cloud seed in fog.

• Obtaining precipitation by cloud seeding in fog can be proof that cloud seeding works.

• When you cloud seed in fog and it rains, you have no way of knowing what caused the rain.

• There is no chance of getting either rain or snow when you cloud seed into fog.

In order to avoid a drought, it is recommended that you...

• cloud seed into fog in the dry season.

• cloud seed into storm clouds in the warm season.

• cloud seed into clear skies with wispy clouds.

• cloud seed into rain clouds in the wet season.

Both Katja Friedrich and Arlen Huggins agree that cloud seeding...

• costs too much for it to be economically viable.

• is only effective if water is conserved well.

• can help both the economy and the environment.

• has little benefit for preventing droughts.

What is true about the environmental impact of cloud seeding?

• Cloud seeding is harmful to mammals because of the silver iodide content.

• There is more toxic silver in the soil and vegetation where cloud seeding occurs.

• Evidence shows that cloud seeding has negative environmental impacts after ten years.

• Currently, there is no evidence that cloud seeding harms the environment.

Maarten Ambaam says that stealing rain by cloud seeding...

• is not possible at either a local level or an international level.

• is possible at a local level but not an international level.

• is possible at an international level but not at a local level.

• is possible at both a local level and an international level.