NEED help pls help 8g more then one question

Answer:
ans 2. wind power
Explanation:
ans 3. it helps in conserving fuel
ans 4. windmils convert wind energy to electrical energy
ans 5. if we conserve minirals we can help the earth if we conserve minirals we may reduce the pollution
ans 6. setting up windmils is not easy it takes huge holes windmils only work if there is wind