C. Shale
A and D are made of rock minerals and dirt, B is incorrect
Answer:
Should be going out of the sac because the molecules has to balance the concentration not sure tho
Answer:
Toxin
Explanation:
Toxin usually refers to a substance that is highly poisonous and is directly generated by the organism such as plants and animals within their living cells. These substances can occur in the form of small molecules, or proteins that have the capacity to cause a certain types of diseases when it comes in physical contact with the body tissue or due to the absorption of these substances by the tissues while having the interaction with its biologically larger molecules.
Thus, toxins are considered as a class of poisonous chemicals that are responsible for the damaging of cells and also affect the growth of cells.
Answer: 1) jet streams are like rivers of wind high above in the atmosphere. these slim strips of strong winds have a huge influence on climate as they can push air masses around and affect weather patterns-- they form a bond between hot and cold air
2) lifting along fronts: when air masses interact. lifting also occurs along frontal boundaries as air masses of different temperature and moisture content interact with each other. the lifted air cools and the water vapor condences to form clouds in advance of the surface warm front
3) when the temperature difference between the cold and warm is large, thunderstorms and even tornadoes may form. thunderstorms can form at a cold front or within air masses. at a cold front, air can be forced upard quckly. within an air mass, uneven heating can produce convection and thunderstorms