Xylophone is a wind instrument. (true or false)

State True or false :

Tap water is a mixture. True or false?

He is an inert gas. True (T) or False (F)

find whether this is true or false

pi is an irrational number (True / False).

Explain stringed and wind instruments. Describe how you can change the pitch in them.

State whether the following statements are true or false. Most protozoans are photosynthetic. A. True B. False

State whether the following statements are true or false. Obligate anaerobes are killed by molecular oxygen. A. True B. False

State whether the following statements are true or false. Malaria is caused by female Anopheles. A. True B. False

State whether the following statements are true or false. Facultative anaerobes may live with or without oxygen. A. True B. False