Using complete sentences, describe what causes the urban heat island effect. Identify two problems associated with urban heat islands and at least one solution to the issue. Pleas help me

Which was an effect of the establishment of the european union

What is an attack against a country called?

In a small, closed economy, national income (gdp) is $350 million for the current year. individuals have spent $100 million on the consumption of goods and services. they have paid a total of $60 million in taxes and the government has spent $75 million on goods and services this year. use this information and the national income identity to answer the questions. how much does the economy spend on investment?