What is true in a physical change?

The smallest group into which an organism is classified? How do you find the closest sunny weather? Is a radish nonvascular? What country is located at 31 degrees North latitude and 123 degrees east longitude? What is the ecological niche of the garden snail? What minerals have striations? Lactic acid is poisonous what does this mean about how long muscles can use anaerobic respiration? How many grams are in a cup of dry dog food? Do snakes have a mitochondria? What are the biotic factor in an ecosystem? What prevents food entering trachea when swallowing? Why does topaz have both cleavage and fracture? How are the roots of mangroves adapted to cope with anaerobic mud? What is the most paying job in the world? What the list of properties that ocean water had due to the fact that it contains salt? What kind of batteries does the Leica Viper II Binocular Laser Range finder use? When purine base only pairs with a pyrimidine? What is proviodine solution? How long does it take petroleum to form? Is a liter of milk more than two pints?