North America was most likely over the South Pole of Pangaea.
Frost wedging occurs because rocks becomes brittle when they freeze and water occupies more volume than ice.
Frost weathering is a collective term for several mechanical weathering processes triggered via stresses created by using the freezing of water into ice. The term serves as an umbrella term for a ramification of techniques which include frost shattering, frost wedging and cryofracturing.
Frost wedging takes place while water filling a crack freezes and expands (because it freezes, water expands 8 to 11% in volume over liquid water). The expanding ice imparts a extremely good amount of pressure against the rock (as plenty as 30,000 kilos/rectangular inch) and wedges open the crack.
Frost wedging takes place in locations which have the right temperatures to freeze water after which soften water. This normally happens in polar areas and mid latitude mountains wherein daylight can soften water throughout the day and refreeze overnight when temperatures drop.
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A. Transpiration
Explanation:
Transpiration is a process that directly moves nutrients from plants to the air.
Transpiration is a process in moves water through a plant and causes evaporation from the aerial part.
- Water is the main plant nutrient lost during transpiration.
- This nutrient is usually lost through the aerial part usually on the leaf and through the stomatal openings.
- During photosynthesis, plants takes up carbon dioxide and water to manufacture their own food.
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Answer:
D. Meteorite
Explanation:
A meteorite is a piece of meteor that survived being burnt up.
Answer:HDI reflects long-term changes (e.g. life expectancy) and may not respond to recent short-term changes. Higher national wealth does not indicate welfare. ... However, HDI can highlight countries with similar GNI per capita but different levels of economic development.
Explanation:
