Letter A. The statement that best describes 21st-century migration flow to the United States is that l<span>arge numbers of immigrants and migrant workers, including skilled and unskilled laborers and many with advanced degrees, are coming to the United States from South and Central America.</span>
<span>law of original lateral continuity</span>
What would happen? The ecosystem would remain stable because the red-tailed hawk would be replaced by increasing populations of elf owls as apex consumers. Food web is the network of different food chains operate in any ecosystem. A food chains consists of producer and different consumers. Apex predators (top carnivores) are top consumers. In a given image of food web of a desert ecosystem, red-tailed hawks are an apex consumer. If red-tailed hawks are removed from the given food web, the populations of elf owls will increase due to unavailable their predator and elf owls will become apex consumers and the ecosystem would remain stable.
Answer:
For the process of gold mining , Na₂CO₃ is better than Fe₂O₃
Explanation:
<u>The task of a gold miner , is to extract gold .</u>
For the process of Gold mining , carbon filters are preferred , because by using carbon filters gold can be easily extracted .
In general , silver and gold get adsorbed on the surface of carbon , hence can be very conveniently extracted from the solution .
South America, which is the home of the Andes mountain range.
