Were Roman coins gold or silver? Roman currency was introduced during the Roman Republic in 300 B.C. and was made of gold, silver, bronze and…
Why snacks should not be allowed in school? Hunger can be a distraction both to the student and to their peers. Lack of food could…
What is a surd in mathematics? A surd is an expression that includes a square root, cube root or other root symbol. Surds are used…
Is it better to skate goofy or regular? There is no right or wrong way to stand on a skateboard (or snowboard, surfboard, or any…
Which substance is cleared by kidney? Renal clearance (ClR) is a measure of kidney transport in units of volume of plasma per unit time. The…
When can you take your permit test in Maryland? 15 years and 9 months The minimum age when you can apply for a permit is…
Why do liquids evaporate over time? As the molecules in a liquid collide, some achieve higher energies, allowing them to escape. This process lowers the…
What do platypuses do for the environment? Since the platypus is a carnivore, it plays the typical role of the carnivore in an ecosystem. It…
Why is bilateral symmetry important in the evolution? Having bilaterally symmetrical bodies (the same on both sides along an axis) permit them to propel forward…
What is the major role of energy? Living things need energy to grow, breathe, reproduce, and move. Energy cannot be created from nothing, so it…
What River Delta is near the islands of Trinidad and Tobago? Orinoco delta The Orinoco delta, a region called Amarcuro, is a wide triangle extending…