<span>They lead executive departments.</span>
Answer:
Theory
Explanation:
In science, a broad idea that has been repeatedly tested and verified, giving scientists great confidence that it represents reality, is called a theory. A theory is a repeatedly test and proven idea by experimentation, theories are facts like the law of gravity, until disproved.
When the price level falls, businesses are unable to sell their products at a price high enough to cover costs they have already incurred, putting producers at risk of failure
Answer:
Amsterdam Treaty
Explanation:
The Amsterdam Treaty was signed on 2 October 1997 according to which the Member States decided to engage in broad policy and institutional changes. The Treaty authorized member states to increase certain powers from national governments to the European Parliament, covering diverse issues like legislating on foreign and security policy, adopting civil and criminal laws and immigration laws. It paved the way for implementing institutional changes to accommodate its expansion because of the new member nations joining the EU.
A soda in a styrofoam cup with a lid, coffee in a thermos with the lid closed is the isolated systems.
<h3><u>Explanation:
</u></h3>
Styrofoam cups and thermos containers are typical examples of containers that don’t allow the transfer of heat energy in their environments. A system is said to be isolated if it doesn’t allow heat exchange with its surroundings. A Styrofoam cup with a lid keeps the coffee hot due to its insulation properties.
Thermos container is a more effective insulator since it is made of double-walled container to lock either heat or cold inside. Insulators create effective isolated system depending on the materials they were made from. A completely isolated system does exist.
