Answer: d
Explanation: Mechanical (physical) weathering is the breakdown of rock into smaller particles due to such factors as freezing and thawing, release of pressure, water absorption, salt crystal formation, landmass uplift, expansion and contraction from the sun or fire, plant root growth, actions of animals, abrasion, or other means that do not directly affect the rock's chemistry.
Answer:
Global warming is caused by gases called green house gases. These green house gases are human made gases that come from things like, cutting down trees, power plants, transportation, farming, fertilizer and oil drilling. The gases get released into the atmosphere and is reflected back to the surface of the earth. This is called the greenhouse gas effect. The gases cause temperatures to rise (climate change) which cause rising sea levels, ice on the poles to melt, increased precipitation and increased forest fires.
Explanation:
Red-green and yellow-blue are the so-called "forbidden colors." Composed of pairs of hues whose light frequencies automatically cancel each other out in the human eye, they're supposed to be impossible to see simultaneously. The limitation results from the way we perceive color.
I think it’s d (Hoped this helped)
