Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Science Topic 7
Science Topic 7 Test
| How human population changed over time | The human population over time has increased because of the increasing birth rate and decreasing death rate. |
| Aquaculture | The practice of raising fish and other water - dwelling organisms for food |
| Why water is such an important resource | We need this to survive and live. Every living thing needs water to survive. Humans and every living thing needs this resource to drink, bathe, etc... And animals need water for the same reasons |
| The pollutants that affect the water supply | Pollution in the ocean affects the water because if any waste, toxins, and chemicals enter the water or groundwater, it could change the quality of the water, making it unable to drink. |
| How humans can prevent human pollution | The trash in landfills hold chemicals that can leak into the groundwater and when we mine, it puts harmful chemicals into the ground. Also, oil and gasoline stored in pipes can leak and oil is hard to collect when dumped in the water |
| Erosion | A natural force that causes soil loss. It takes away plants and exposes the soil to wind and precipitation which makes the soil easily move. |
| Development | When humans use the land, typically, for building purposes. But it also takes away other living organisms’ habitats. |
| Healthy Soil | Essential for the success of agriculture, soil absorbs, stores, and filters water, soil contains minerals/nutrients plants need, and organisms living in soil break down wastes and turn them into nutrients again. |
| Agriculture | Provides most of the food people eat, but desertification, which is linked to agriculture, destroys habitats. |
| Mining | |
| Desertification | A desert-like area that was once fertile. After the land dries up, nothing grows and the soil that was once there, loses all its nutrients. |
| Landfills | |
| Wetlands | These are very important because they provide habitats, decreases erosion and flooding, prevents large amounts of water would enter rivers or flow over populated areas |
| Farming wastes | |
| Household pollutants | |
| Industrial Wastes | |
| Sediment from Mining |
Created by:
28lins
Popular Science sets