Answer:
Tertiary consumers, sometimes also known as a p e x predators, are usually at the top of food chains, capable of feeding on secondary consumers and primary consumers. Tertiary consumers can be either fully carnivorous or omnivorous. Humans are an example of a tertiary consumer.
Explanation:
The correct options are:
- Improved engines; engines were improved significantly so that they can have the same power and agility but by using less fuel.
- Cleaner burning fuels; it has been invested a lot of time and money into improving the fuels and making them as effective as possible but also removing or lowering the most dangerous components towards the environment.
- Catalytic converters; this devices for exhaust emission control manage to convert the toxic gasses and polutants into less toxic pollutants by managing to catalyze a redox reaction.
Answer:
A. The ice has a high albedo.
Explanation:
Albedo is a measure of ‘whiteness’ or reflectivity which is also the rate at which a surface is able to reflect a percentage of solar radiation it receives. White surfaces have a higher albedo which is why Arctic and Antarctic regions with lots of ice sheets have a high albedo. They play a big role in regulating global temperatures. The larger the ice sheet cover in the antarctic and arctic regions, the more they reflect solar radiation back to space hence keeping the temperatures on earth from rising considerably.
Answer:
The process whereby countries in a geographical area cooperate with one another to reduce barriers to the international flow of products,people or capital is called as regional economic integration.
Explanation:
Regional economic integration is defined as an agreement between groups of counties in a geographical region that reduces barriers to the flow of goods,services,factors etc.
In 1952, this type of agreement was occur between European and 15 different European countries and the main purpose of this was to eliminate the barriers and create flow of goods between European countries which in turn creates new opportunities and provide regional free trade agreement.
The levels of integrations are Free trade,Customs Union, Common Market,Political Union etc.
