Answer: I can only help you with one
4. D because you need data fro what ever your doing.
thats as much as i can help vote me the brainleirst
Answer:
4
Explanation:
Because all the living things need carbon to make protein,carbohydrates,lipids
Answer:
Soil Erosion
Explanation:
Basically, tillage breaks soil up, destroying its overall structure. It encourages surface runoff and therefore soil erodes more easily. In some cases soil erosion is beneficial, but in most cases, it is not. Tillage has also been found to cause the emissions of more toxic gases such as N20.
The answer u r looking for is- D* failure of the immune system to distinguish self from nonself. Hope I’ve helped ;)
