The teacher asked the students             .

A．if they are interested in dinosaurs

B．when was Audery Heben born

C．What they will do with the computers

D．how many trees they had planted

下列说法不正确的是（　　）

A．久置于空气中的生石灰质量会增加

B．原子是化学变化中的最小微粒

C．人类利用的能量都是通过化学变化获得的

D．原子的质量几乎都集中在原子核上，由质子和中子决定