Your roommate, who has not studied climate, says, "i thought the greenhouse effect was a bad thing. isn't it what's causing global warming? " which of the following statements might you use to your roommate understand the true nature of the greenhouse effect? select the two that apply. a. some gases, like carbon dioxide and water vapor, "trap" the heat radiated by earth, causing warming. b. earth would be more livable without the greenhouse effect. c. when there are more greenhouse gases in the atmosphere, the greenhouse effect is stronger. d. carbon dioxide is the only greenhouse gas that matters.

Option (A) and (C).

Explanation:

Global warming may be defined as the increase in the average earth's temperature. The global warming occurs due to human activities like deforestation and urbanization.

The green houses gases are responsible for increase in the global warming. Gases like water vapor, methane and carbon dioxide can trap the heat and causes global warming. The green house effect is directly proportional to the amount of green house gasses as more heat are trapped by green house gases.

Thus, the correct answer is option (A) and (C).

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.  

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: