Answer:
20 million people
Explanation:
Some 20 million people took part in the first Earth Day protests held across the United States on April 22, 1970. In New York City, the streets near Union Square Park were turned into an "ecological carnival" in one of the largest demonstrations the city had seen in decades.
Answer: Debate and discussions on climate change are very important among scientists.
Explanation: Many scientific opinions have expressed in the form synthesis reports, by scientific bodies both national and international standing, and also by debate and surveys of opinion among climate scientists. The aim is to mitigate against climate change and creating awareness of the adverse effect on our enivornment.
Universities, scientists and laboratories contribute their quota to the overall scientific opinion through peer-reviewed publications, and the areas of collective agreement and relative certainty are summarised in respected reports and surveys carried out.
The answer is b,c,a. it all started with pangea
B. The opinions may provide clues to the source's feelings and possible bias
Explanation:
History helps to unravel the past so as to better understand the present and predict the future to a logical extent.
The primary sources usually gives the eye witness account about an event. The information here is usually original and raw in terms of quality. Some examples are reports of experiments, records, etc. Most facts are usually drawn from primary sources.
Secondary sources are second hand information about an incidence. Most news reports and newspaper accounts are secondary sources of information. They represents opinions about a happening.
Opinions gives investigative and thoughtful perspective about most primary sources of historical data. They provide a keen thought about possible bias and feelings of the actual description of the original evidence.
