a.
1. F
2. T
3. T
4. T
b.
1. Because the climate is not very good.
2. No, they aren't
3. Yes, they do
4. They have two layers of glass in the windows to stop the heat going out.
$\text{~ Chúc bạn học tốt ~}$
$\text{~ Nếu được thì cho mk trả lời hay nhất nha! ~}$