Tag: science & technology

The declaration creates x as float (size 2 in 16-bit), p as pointer to float, q as pointer to pointer, r as pointer to pointer to pointer. The expression r dereferences twice to reach the float value, so sizeof(r) returns the size of float itself, which is 2 bytes in a 16-bit machine. The pointer chain doesn't affect the size of the ultimate float type.

Integer size is not fixed in C - it depends on multiple factors. Different operating systems can use different sizes (32-bit vs 64-bit systems). System architecture (16-bit, 32-bit, 64-bit) directly affects integer size. Different compilers may choose different sizes based on target platform. Therefore options B, C, and E are all correct.

This statement is false. There is no factual basis for Colgate finding it easier to advertise in Spanish-speaking countries. The brand has marketed globally in multiple languages without specific difficulty in English-speaking regions. This appears to be a manufactured trivia fact.

This is true. The Mona Lisa painting indeed depicts no eyebrows or eyelashes. This could be due to overcleaning of the painting over centuries, or it may reflect the Renaissance fashion trend of women shaving their facial hair. Leonardo da Vinci's masterpiece is famous for her enigmatic smile.

This is true. Cockroaches can survive approximately a week without their head because they breathe through spiracles (small openings) on their body segments, not through their mouth or nose. They eventually die from dehydration or inability to eat, not from loss of the head itself.

This is false. The Canary Islands were never known as the 'Unfortunate Islands.' The name 'Canary' comes from the Latin word for dog (canis), referring to the large dogs found there by the Romans. The islands were known to ancient civilizations but never by the name mentioned in this question.

This is true. All these words are portmanteaus - words formed by combining the sounds and meanings of two different words: motor+hotel=motel, breakfast+lunch=brunch, smoke+fog=smog, chuckle+snort=chortle. This blending process creates new words that convey combined meanings.

This is true. Tombstoning is indeed the term used to describe the activity of jumping off cliffs or high structures into the sea or other bodies of water. The term originated in Britain and refers to the vertical position of the body during the jump, resembling a tombstone.

The actual number of ways to make change for a US dollar using pennies, nickels, dimes, quarters, half-dollars, and dollars is 293, not 249. This is a classic combinatorics problem involving counting distinct combinations that sum to 100 cents.

March 14 is indeed recognized as Save a Spider Day, an unofficial observance encouraging awareness of spider conservation. Spiders are beneficial predators that control insect populations. This is the same date as Pi Day (3.14), a mathematical celebration.