Answer:
a line on a map joining points of equal height above or below sea level
Answer:
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism. The remaining 97–99.5% is lost by transpiration and guttation.[1] Leaf surfaces are dotted with pores called stomata (singular "stoma"), and in most plants they are more numerous on the undersides of the foliage. The stomata are bordered by guard cells and their stomatal accessory cells (together known as stomatal complex) that open and close the pore.[2] Transpiration occurs through the stomatal apertures, and can be thought of as a necessary "cost" associated with the opening of the stomata to allow the diffusion of carbon dioxide gas from the air for photosynthesis. Transpiration also cools plants, changes osmotic pressure of cells, and enables mass flow of mineral nutrients and water from roots to shoots. Two major factors influence the rate of water flow from the soil to the roots: the hydraulic conductivity of the soil and the magnitude of the pressure gradient through the soil. Both of these factors influence the rate of bulk flow of water moving from the roots to the stomatal pores in the leaves via the xylem.[3]
Patagonia is dry because it lies in the rain shadow resulting from high mountain range of the Andes rising on the western side of this desert. The Andes block the westerly flow of moisture from the southern pacific from reaching the inland areas thus creating the desert.
The cold Falkland current found that is found off the Atlantic coast of south America also contributes to the aridity of the area.
The Patagonia desert occupies 673, 000 square km and is the largest desert in Argentina and 7th largest in the world by area.
Answer:
YEAH
Explanation:
ACTUALLY PLEASE MAKE THE QUESTION CLEAN AND CLEAR I MEAN PLEASE HAVE SHORT AND SWEET , THANKYOU
Answer:
-18°C
Explanation:
Global warming takes place due to the constant increment of atmospheric gases caused by human activities, and these include CO2, CH4, N20, and CFC. These are commonly known as greenhouse gases because they allow for the major part of solar radiation to enter the atmosphere and heat the surface of the Earth. At the same time, they avert a part of thermal radiation from escaping to space. If these effects caused by greenhouse gases and water did not exist, the average temperature of the Earth would be around -18°C (0°F), but instead, it is about 15°C (59°F).
