Biology
Who proposed the theory of evolution by natural selection?
Charles Darwin
Kimyoviy elementlarning belgilarini ko‘rsatib beruvchi jadval nima deb ataladi?
Mendeleyev davriy jadvali
What gas do humans breathe in that is needed for respiration?
Oxygen
Suv molekulasi qaysi ikki elementdan tashkil topgan?
Vodorod va kislorod
What part of the plant carries water from the roots to the leaves?
The xylem
Qanday reaktsiyada kislota va ishqor birikib, tuz va suv hosil bo‘ladi?
Neytrallanish (neytrallash)