Answer:
Reptiles have dry, tough skin covered in scales, Reptiles breathe using lungs. Reptiles’ kidneys concentrate urine. Young reptiles develop inside an amniotic egg.
Explanation:
good luck :)
2 is B. Water freezes and 4 is the rock breaks.
Answer:
pollution doesn't nessairly stay in the atmosphere, it is moved throughout the atmosphere and can be removed by a natural process.
Answer:
I think it's a) 0.3 km/min
