A caste is like a class system, and an ethnic group is a race and culture that group together
One of the real solution for checking pollution level would be by monitoring the usage of automotive vehicle. The Co2 emission from automotive vehicles played a major part in world's pollution because it's not only deteriorate the quality of our breathing air, it also break the ozone layers
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Answer:
Van Helmont - He concluded that trees gain most of their mass by absorbing water
Priestley- He found out that plants release oxygen
Ingenhousz- He concluded that plants needs sunlight to produce oxygen.
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Changes in fiscal policy that stimulate ad in a recession without the need for explicit action by policymakers are called Automatic Stabilizers
Automatic Stabilizers
Automatic stabilizers are a type of fiscal policy that is designed to offset fluctuations in a country's economic activity through normal operation without the need for additional, timely authorization from the government or policymakers.
During a recession, automatic stabilizers can alleviate household financial stress by lowering tax bills or increasing cash and in-kind benefits, all without requiring changes to the tax code or new legislation. When a household's income falls, for example, it generally owes less in taxes, which helps to soften the blow.
Learn more about the automatic stabilizers: brainly.com/question/25558588
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