Friction causes an object to lose energy, and byproducts of friction Friction is a force acting against motion. Given these facts, force acting against motion causes what among the following options: - Object to lose energy. - depress neuronal excitability - body temperature reduces - kinetic energy - heat production - heat is produced - heat the body - a lot of human deaths
Object to lose energy.

When a hemisphere is tilted towards the sun , that hemisphere receives more direct sunlight, and rio is in the southern hemisphere. Given these facts, what receives more direct sunlight when tilted towards the sun among the following options: - Rio - pan - Aves - earth's core - corn - bottom of the ocean - buried treasure - Man
Rio

Q: If an object reflects light toward the eye then that object can be seen, and mirrors reflect light. Given these facts, what do mirrors do among the following options: - converting electricity to heat - prevent heat loss - duplicate itself - reflect air molecules - infrared light - It gets more light - invisible objects - reflect objectstowards the eye
A: reflect objectstowards the eye

Question: Fog is formed by water vapor condensing in the air, and when air cools, the water vapor in the air condenses.". Given these facts, fog is formed when among the following options: - summer end - evaporation - Winter - movement - air cools - Wet weather - rainy - dry and hot
Answer: air cools

*Question*
Organs of excretion make up the excretory system, and digestive system Excretory system removes waste and toxic substances from blood. Given these facts, what removes waste from blood among the following options: - exhaling - Leptospirosis - hemmhorage - Acids - excretion - glucose - bacteria - respiration
**Answer**
excretion

*Question*
Ablack hole is formed by a high-mass star collapses, and stars are on an outermost celestial sphere. Given these facts, what is formed when a high mass celestial body collapses among the following options: - rays or beams - Calcium carbonate - It gets heated up - fossil fuels - scattered light - layers of fat - a black hole - heating liquids
**Answer**
a black hole