Hi there! I hope I'm not late. The answer is D and E. I just got it right. Hope this helps ;)
It is were the waste in your body comes out eg. urine, snot and sweat.
Reduces carbon monoxide emissions from gasoline and improves fuel octane
Answer: ammonia
Explanation: Nitrogenous wastes in the body tend to form toxic ammonia, which must be excreted. Mammals such as humans excrete urea, while birds, reptiles, and some terrestrial invertebrates produce uric acid as waste. Uricothelic organisms tend to excrete uric acid waste in the form of a white paste or powder
Answer:
Destruction of animals' habitats. Some examples of this are... tree logging, slash and burn farming, and deforestation. Humans also hunt animals to extinction either for sport or food.
Explanation:
