Diamond is harder than Graphite because of___________?
A. Difference in crystalline Structure
B. Tetrahedral structure of diamond
C. Difference in layer of atoms
D. None of these
Submitted by: Malik Asghar Hussain
A. Difference in crystalline Structure
B. Tetrahedral structure of diamond
C. Difference in layer of atoms
D. None of these
Submitted by: Malik Asghar Hussain
As it turns out, heat speeds up chemical reactions and this affects the food both in good and bad ways. Overcooking can affect the quality of food – firstly it makes food harder to digest and metabolize, and secondly, charred and burnt foods contain carcinogenic substances.
A. Sitting position
B. Standing Position
C. Lying Position
D. None of these
A. Mercury
B. Neptune
C. Venus
D. None of These
Venus has the longest day of any planet in our solar system. It completes one rotation every 243 Earth days. Its day lasts longer than its orbit. It orbits the Sun every 224.65 Earth days, so a day is nearly 20 Earth days longer than its year.
Venus looks like a very active planet. It has mountains and volcanoes. Venus is similar in size to Earth. Earth is just a little bit bigger.
Venus is unusual because it ss the opposite direction of Earth and most other planets. And its rotation is very slow. It takes about 243 Earth days to s around just once. Because it’s so close to the sun, a year goes by fast. It takes 225 Earth days for Venus to go all the way around the sun. That means that a day on Venus is a little longer than a year on Venus.
The Beta particles are fast moving___________?
A. Protons
B. Electrons
C. Neutrons
D. None
A. Odology
B. Anthropology
C. Ornithology
D. Psychology
A. Sandfly
B. Dragonfly
C. Mosquito
D. Housefly