The most difficult hard simple questions riddlesNature quiz
In which month is the Earth closest to the Sun?
there is no difference
Earth's perihelion occurs around January 3, and the aphelion around July 4. The distance change is about 3.5%, which gives 6.9% increase in solar energy reaching the Earth at perihelion relative to aphelion. Since the southern hemisphere is tilted toward the perihelion, the southern hemisphere receives more energy from the Sun than does the northern over the course of a year.
Where was Leonardo da Vinci born?
Leonardo da Vinci was born on 15 April 1452, in a farmhouse about 3 kilometers from the town of Vinci, near Florence. His full name was "Leonardo di ser Piero da Vinci", which means "Leonardo, son of Piero, of Vinci".
Where does the name K2 come from?
name of Polish climber - Jerzy Kukuczka
the fact it's second in height in the world
name of the Karakoram Range
the name "King George II"
The name K2 is derived from the notation used by the Great Trigonometric Survey. Thomas Montgomerie numbered the most prominent peaks of Kararkoram K1 to K35. Next, these were replaced by local names, but K2 appeared not to have acquired a local name, possibly due to its remoteness.
What is inside Swiss cheese holes?
Carbon dioxide is produced by bacteria feeding on the lactic acid. In the Middle Ages, the holes were considered a sign of imperfection and cheese makers would try to avoid them.
How do baby birds get oxygen inside their eggs?
They have a large oxygen supply from the start
Oxygen is created during protein reduction
Oxygen comes in through pores in the shell
They don't need oxygen at all
Directly under the shell, there is a small pocket of air. The microscopic pores on the egg surface allow the CO2 to escape and fresh air to get in, so a developing bird can breathe.