- What are the periodic cycles in the Earth's orbit around the Sun?
- What is a major factor in building up the heat in the Earth's atmosphere?
- Over the course of time, slaves built their own culture, including distinct forms of _________. (choose all that apply)
- These do have an effect on how much energy hits the planet
- _____ pollutants are those harmful substances that are created from the reactions between primary pollutants and the components of the atmosphere.
- What is the sinking of land in areas where excessive amounts of water were removed?
- Burning coal, oil, and natural gas has led to an increase of this in the atmosphere
- What is the most common form of soil contamination?
- Which of the following is a way to improve the overall air quality?
- What brings warmer than normal surface ocean temperatures in the tropics?
- The United State's EPA regulates more than _____ different toxins that can be found in industrial pollution.
- Virginians justified using African slave labor because ____________. (choose all that apply)
- The French and Indian War was part of the ____________.
- Caused by toxins contaminating the local water supply
- Cooler than normal ocean temperatures may occur in the tropics
- Periodic cycles in the Earth's orbit around the Sun
- King Charles I gave the Burgesses the right to do which of the following? (choose all that apply)
- The first Africans arrived in Virginia in ____.
- The English gave gifts to their _______________, while the Powhatans gave gifts to their inferiors.
- Once Virginia became a royal colony, who chose the governor and his council?