Answer:
the main ones are Variations in the sun's energy reaching Earth.
Changes in the reflectivity of Earth's atmosphere and surface.
Changes in the greenhouse effect, which affects the amount of heat retained by Earth's atmosphere.
Explanation:
caused by the variation in the occurrences of some climatic factors; rainfall, temperature, light wind: biotic factors; predators, parasites, soil micro-organism, pest and diseases: and edaphic factors; soil pH,
Plants are called producers because they are able to use light energy from the sun to produce food (sugar) from carbon dioxide and water. Animals cannot make their own food so they must eat plants and/or other animals. They are called consumers. There are three groups of consumers. Animals that eat only plants are called herbivores (or primary consumers). Animals that eat other animals are called carnivores. Carnivores that eat herbivores are called secondary consumers, and carnivores that eat other carnivores are called tertiary consumers. Animals and people who eat both animals and plants are called omnivores. Then there are decomposers (bacteria, fungi, and even some worms), which feed on decaying matter. These decomposers speed up the decaying process that releases mineral salts back into the food chain for absorption by plants as nutrients.
In a food chain, energy is passed from one link to another. When a herbivore eats, only a fraction of the energy (that it gets from the plant food) becomes new body mass; the rest of the energy is lost as waste or used up by the herbivore to carry out its life processes (e.g., movement, digestion, reproduction). Therefore, when the herbivore is eaten by a carnivore, it passes only a small amount of total energy (that it has received) to the carnivore. Of the energy transferred from the herbivore to the carnivore, some energy will be “wasted” or “used up” by the carnivore. The carnivore then has to eat many herbivores to get enough energy to grow. Because of the large amount of energy that is lost at each link, the amount of energy that is transferred decreases each time. The further along the food chain you go, the less food (and hence energy) remains available.
Food chains can also be represented in different forms such as this pyramid.
The Renaissance saw the emergence of city-states in Italy and elsewhere that benefited from being located along trade routes by land and sea. Explore the growth of independent trading Italian city-states like Genoa and Venice that thrived during the Renaissance.
"Why We Fight," the film directed by Frank Capra for the United States Army Signal Corps, illustrated the importance of World War II to everyday Americans.
<h3>
How did the movie "Why We Fight" arise? </h3>
- The US Department of War produced seven propaganda films titled Why We Fight between 1942 and 1945, during World War II.
- Franklin D. Roosevelt, the president of the United States, authorized its general distribution after it was originally designed to inform American soldiers on why their nation was at war.
- Triumph of the Will, a 1935 propaganda film by Leni Riefenstahl, intimidated, impressed, and pushed Oscar-winning filmmaker Frank Capra to make a direct response.
- In order to enter the battle and support the Soviet Union, the show had to persuade a non-interfering nation to do so.
- Many entries make use of Axis propaganda photos that have been contextualized to favor the Allies and go back as far as 20 years.
- Although much of the editing was done by William Hornbeck.
"Why We Fight," the film directed by Frank Capra for the United States Army Signal Corps, illustrated the importance of World War II to everyday Americans.
To know more about "Why We Fight,", check out:
brainly.com/question/9232933
#SPJ4
