i am about to do a unit test and about to have a lot of questions coming in and will need some help please

Of course! I'm here to help you. Please feel free to ask any questions you have during your unit test, and I'll do my best to assist you in finding the answers.

Which statement explains how smog forms?

a Volcanoes erupt and release ash into the sky.
b Strong storms pick up soil and mix it with fog.
c Sunlight and heat react with gases in the atmosphere.
d Gases move high into the atmosphere and then fall to Earth in rain.

The correct statement that explains how smog forms is option c: Sunlight and heat react with gases in the atmosphere.

Which environmental policy must consider the expensive startup costs associated with building machines that harvest energy from clean sources?

The environmental policy that must consider the expensive startup costs associated with building machines that harvest energy from clean sources is the policy promoting the transition to renewable energy sources. This policy recognizes the initial investment required for installing and setting up renewable energy technologies such as solar panels, wind turbines, or geothermal systems. The aim is to incentivize and support the development of clean energy by offering financial assistance or tax benefits to mitigate the high upfront costs and encourage widespread adoption.

Which environmental policy must consider the expensive startup costs associated with building machines that harvest energy from clean sources?

reducing air pollution
regulating deforestation
introducing new farming methods
protecting ocean reefs

The environmental policy that must consider the expensive startup costs associated with building machines that harvest energy from clean sources is reducing air pollution. This policy involves implementing measures to decrease the emissions of pollutants into the air. It may include transitioning to cleaner energy sources, such as renewable energy, which often require high upfront costs for initial setup and infrastructure development. By considering the expensive startup costs, this policy focuses on promoting the adoption of clean energy technologies to reduce air pollution and improve overall air quality.

Which resource is sometimes unpredictable in terms of energy production?

coal
wood
gasoline
natural gas

The resource that is sometimes unpredictable in terms of energy production is natural gas. Unlike coal, wood, or gasoline, natural gas is a fossil fuel that can be extracted and used for energy production. However, its availability can sometimes be uncertain due to factors such as fluctuations in demand, changes in supply levels, and geopolitical issues. This can lead to unpredictable energy production and supply.

Which three gases are released into the atmosphere when volcanoes erupt?

radon, water vapor, carbon monoxide
radon, helium, nitrogen
nitrogen, water vapor, carbon dioxide
carbon dioxide, carbon monoxide, radon