Lesson 51 Vocabulary
English word English Definition English Example sentence
1 to be polluted to be full of toxic or dirty things The air in LA is so polluted!
2 to pollute ~ to release toxic things or dirty things into the environment Cars pollute the air very much; car exhaust is a major factor in bad air quality.
3 to dump to throw trash into the environment, into a natural place Many people dump their old furniture in the mountains because it costs too much to have it properly disposed of.
4 pesticides farm chemicals that kill unwanted bugs and insects Fruits with soft flesh, such as strawberries, require a lot of pesticides to protect them.
5 carbon dioxide the by-product of breathing, or of burning things Coal is a convenient fuel, but burning it releases a lot of carbon dioxide.
6 emissions the general word for everything that is released into the air by industrial processes Emissions of methane are increasing as the permafrost melts.
7 exhaust the dirty air that comes out of the back of an automobile The exhaust from the trucks was black and sooty.
8 air pollution the problem of having dirty things and small particles in the air China has recently become famous for its high levels of air pollution.
9 noise pollution the problem of having too many loud sounds in an environment Humans can usually deal with noise pollution, but it sometimes disturbs the sleep of animals living in the environment.
10 light pollution the problem of having too much man-made light in an environment Due to light pollution in big cities, it is hard to see the stars at night.
11 to reduce ~ to make something decrease or go down in number In order to reduce lead in the environment, the US began using unleaded gasoline.
12 to cut down on ~ to make something decrease slightly or go down a little bit By producing its own oil, the country can cut down on the amount of oil it imports.
13 to recycle to take a piece of trash and re-make it into another product PET bottles can be recycled into plastic bags.
14 to contaminate ~ to make something dirty that was clean before The oil tanker started to leak and the oil contaminated the ocean.
15 smog a type of air pollution that is a mixture of smoke and fog Smog blanketed the city and made visibility poor.
16 to plant ~ to put a seed or seedling in the ground in order to grow a plant The city planted trees to improve the air quality.
17 a developed country a modern, high-technology country I grew up in a developed country, so I had access to clean water, plenty of food, and many work and learning opportunities.
18 a developing country a country that is in the process of becoming modern and high-technology India is a developing country; its population is booming, and people are beginning to live modern, high-tech lives.
19 carbon footprint the amount of carbon dioxide produced by an individual or country My carbon footprint is pretty small; I never drive, and I only fly in an airplane about once a year.
20 to offset ~ to cancel something negative by doing something positive I drive 50km per day, and I feel bad about it. However, I offset my carbon emissions by planting trees on the weekends.
21 contaminants the general word for all bad or poisonous things The factory created many jobs in the region, but also released many contaminants.