What is the function of grassed waterways?
A. To increase soil fertility
B. To decrease soil erosion
C. To decrease soil fertility
D. To increase soil erosion
Answer: B
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Many species are going extinct at a rate that is alarming scientists.
Answer the following statement true (T) or false (F)
Atmospheric conditions that produce sleet differ from those that produce hail because for sleet to form, surface temperatures must be ____________________ freezing, whereas surface temperatures are typically well ____________________ freezing during hailstorms.?
Fill in the blank with correct word.
Some experts have dubbed our current century, the Asian Century for the profound impact that this region will have on the world throughout this century
Indicate whether the statement is true or false
Highly persistent toxic chemicals
A. Accumulate within one organism but break down at higher trophic levels B. Retain their toxicity as they cycle through the food chain and environment C. Are usually not that toxic in their life span D. Are highly unusual among artificial chemicals E. Lose their toxicity once released in the environment