Answer:
Greenhouse gases from human activities are the most significant driver of observed climate change since the mid-20th century.1 The indicators in this chapter characterize emissions of the major greenhouse gases resulting from human activities, the concentrations of these gases in the atmosphere, and how emissions and concentrations have changed over time. When comparing emissions of different gases, these indicators use a concept called “global warming potential” to convert amounts of other gases into carbon dioxide equivalents.
Explanation:
Why does it matter?
As greenhouse gas emissions from human activities increase, they build up in the atmosphere and warm the climate, leading to many other changes around the world—in the atmosphere, on land, and in the oceans. The indicators in other chapters of this report illustrate many of these changes, which have both positive and negative effects on people, society, and the environment—including plants and animals. Because many of the major greenhouse gases stay in the atmosphere for tens to hundreds of years after being released, their warming effects on the climate persist over a long time and can therefore affect both present and future generations.
Answer:
b, the definition of an ion is a charged atom or molecule
The correct answer to your question is<span> The common nucleic acid sequences of polar bears and black bears can be deduced from their classification in the same genus, Ursus. In this sentence, it will explain that there is a hierarchy among organism and by the word "genus", this means this is one of the part of the hierarchy.</span>
Answer:
The honeycomb-like appearance of this sandstone is a result of frost wedging. The honeycomb-like appearance of this sandstone is a result of frost wedging
Explanation:
Climate regulation, nutrient cycling, and other ecosystem services are economically valuable and essential for life on Earth.
