Agriculture and fisheries are highly dependent on the climate. Increases in temperature and carbon dioxide (CO2) can increase some crop yields in some places. But to realize these benefits, nutrient levels, soil moisture, water availability, and other conditions must also be met. Changes in the frequency and severity of droughts and floods could pose challenges for farmers and ranchers and threaten food safety.<span> Meanwhile, warmer water temperatures are likely to cause the habitat ranges of many fish and shellfish species to shift, which could disrupt </span>ecosystems<span>. Overall, climate change could make it more difficult to grow crops, raise animals, and catch fish in the same ways and same places as we have done in the past. The effects of climate change also need to be considered along with other evolving factors that affect agricultural production, such as changes in farming practices and technology.
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Soil type will influence crop cultivation because different crops prefer different soils.Clay soils with their high water retention are well suited to rice whilst sandy soils with good drainage are good for root vegetables. Soil type can be influenced through the input of lime, clay or fertilizer but this can only make limited differences.
Every major advance in agriculture<span> has allowed global </span>population<span> to increase. Early farmers could settle down to a steady food supply. Irrigation, the ability to clear large swaths of land for farming efficiently, and the </span>development<span> of farm machines powered by </span>fossil<span> fuels allowed people to grow more food and transport it to where it was needed.</span>
Complete question is;
What features of ocean basins are chains of basaltic rock that stretch more than 1.5 times Earth's circumference around the world at spreading centers?
Answer:
Oceanic ridges
Explanation:
The answer is oceanic ridges because they occur along divergent plate boundaries, where new ocean floor is formed as a result of the tectonic plates of the earth spreading apart. This separation leads to rise of molten rocks to the seafloor thereby producing very huge basaltic volcanic eruptions.
Answer:
They have become accustomed so that they can:
Survive in waterclogged soil
Survive in soil with no oxygen
Tolerate brackish water
Answer:
They have been shaped by physical weathering.
Explanation:
Physical or mechanical weather is the type of erosion responsible for breaking down rocks without chemical processes. There are many types of physical weathering that affect the landscape in many ways.
- Thermal stress makes a rock expand and contract and eventually break.
- Frost causes cracks in rocks by fracturing them during the formation and melting of water molecules.
- The Oceans weather coast lines through wave action and salt crystal weathering.
- In a process known as unloading, rocks formed underground and exposed to the surface can fracture.
- The weight and power of glacial masses erodes glacial valleys through abrasion.
Looking at the positions of most if not all volcanoes, earthquakes, and major mountain belts, they are distributed mainly around the tectonic plate boundaries.
This is because the boundaries push further away, move closer together, and slide against each other (convergent, divergent, transform), thus creating either mountains, volcanoes, or earthquakes.