for better research go to under NOAA - Climate.gov
This is a short paraphrased summary of the article about ice cores in that website.
Answer: Researchers in labs may melt or crush bits of the ice core a little at a time, each deeper layer shows the time in the Earth's climate history. Tiny pieces of pollution, metals, radoiactive fallout, pebbles, sea salt, volcanic ash and even air bubbles all present important information that researchers can look for to track changes in the atmosphere's composition and temperature.
Answer:
The EU - setting the pace in international environment policy
European citizens enjoy some of the world's highest environmental standards. However, no matter how robust internal EU environmental legislation is, it cannot shield us from the negative consequences of trans-boundary and global environmental degradation, nor does it sufficiently reduce the impact of the EU's economic activity on natural resources worldwide. Today’s challenges are much more inter-related and we have to make sure that we achieve sustainable development in all of its three dimensions: environmental, social and economic.
Confronting the global challenges of climate change, biodiversity loss and biosafety, deforestation, air and water pollution, and chemicals management – to name but a few – requires real commitment and effective cooperation at the international level.
Explanation:
hope this helps you please mark me as brainliest
Answer:
x = 7, y = 2
Explanation:
Two triangles are said to be congruent if all three sides and three angles of one triangle is equal to three sides and three angles of the other triangle.
From the question:
BD ≅ BD (reflexive property of equality)
Since BD is the angle bisector of ∠ABC, hence ∠ABD = ∠CBD
∠ABD = 2x + y, ∠CBD = 14 + y. Therefore:
2x + y = 14 + y
2x = 14 + y - y
2x = 14
x = 14 / 2
x = 7
Also, ∠BAD = ∠BCD = 90° (right angled triangle)
Since ∠BAD = ∠BCD, BD ≅ BD and ∠ABD = ∠CBD, therefore ΔABD is congruent to ΔCBD by angle-angle-side congruence theorem.
The angle-angle-side congruence theorem states that if two angles and one side of one triangle is equal to two angles and one side of another triangle the both triangles are congruent.
ΔABD is congruent to ΔCBD, therefore AD = CD
5x - y = x + 13y
13y + y = 5x - x
14y = 4x
14y = 4(7)
y = 4(7) / 14
y = 2
Convection<span> in the solid mantle drives the many processes of plate tectonics, including the formation and movements of the continents and oceanic crust.</span>
