Question no 4: answer the short question. 10 ×2 =20
- What are autotrophs?
- Differentiate between voluntary and involuntary actions?
- What is skull ? Why is it important?
- What conditions are most favourable to the mould growth?
5.define microorganisms?
6.what is infection?
- What type of infection is caused by Aedes mosquito?
- How many states of water exit naturally?