Carbon dioxide in the atmosphere is an important gas for plants because it is the most important gas that drives the process of Photosynthesis.
Photosynthesis enables plant to respirate and produce their own food.
<h3>
What is Photosynthesis?</h3>
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.
The process of photosynthesis is an aerobic one because it involves the reduction of carbon dioxide to carbohydrate and the removal of electrons from water, resulting in the release of oxygen in all plants and algae, as well as in specific types of bacteria.
Photosynthesis is also important to man and other mammals because it help in oxygen production which humans inhale to survive.
Learn more about Photosynthesis at brainly.com/question/19160081
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Answer:
Quota sampling
Explanation:
Quota Sampling is a non-probability sampling method in which the population is divided in <u>mutually exclusive subgroups</u> and the items from each of the subgroups are <u>selected based on a proportion. </u>
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In this example the households were divided into <u>two subgroups: single-person households and husband-wife households </u>(it is clear that this subgroups are mutually exclusive). Then, since 40% of all households are single-person and 60% are husband-wife, t<u>he researcher ask interviewers to collect information based on this proportion,</u> therefore, 40% of the interviews will be done with single-person households and 60% with husband-wife households. Thus, these interviews are done based on a proportion.
We can see that the example meets all the requirements for quota sampling and thus, it's an example of this type of sampling.
The correct answer would be
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The Meat Inspection Act of 1906 put an end to meat companies using chemicals to try to preserve meat.
Prior to this act, the companies to were using chemicals like boric acid and formaldehyde to try to keep meat from rotting. These chemicals were making people sick, and in some cases, killing them.
Speculation about the nature of the Universe must go back to prehistoric times, which is why astronomy is often considered the oldest of sciences. Since antiquity, the sky has been used as a map, calendar and clock. The oldest astronomical records date from approximately 3000 BC and are due to the Chinese, Babylonians, Assyrians and Egyptians. At that time, stars were studied for practical purposes, such as measuring the passage of time (making calendars) to predict the best time for planting and harvesting, or with objectives more related to astrology, such as making predictions of the future, since, having no knowledge of the laws of nature (physics), they believed that the gods of the sky had the power of harvest, rain and even life.
Several centuries before Christ, the Chinese knew the length of the year and used a 365-day calendar. They left accurate notes of comets, meteors and meteorites since 700 BCE. Later, they also observed the stars that we now call new.
The Babylonians (Mesopotamia region, between the Euphrates and Tigres rivers, present-day Iraq, Hammurabi, Nebuchadnezzar and the Bible Tower of Babel), Assyrians and Egyptians also knew the length of the year since pre-Christian times. In other parts of the world, evidence of very old astronomical knowledge was left in the form of monuments, such as that of Newgrange, built in 3200 BC (on the winter solstice the sun illuminates the corridor and the central chamber) and Stonehenge, in England, which dates from 3000 to 1500 BC.
