Answer: The release of methane from thawed permafrost
Explanation:
With increasing global warming, permafrost in the arctic is melting. The carbon and methyl clathrates present in permafrost escape into the atmosphere to form carbon dioxide and methane, both greenhouse gases.
In the Arctic, molecules of methane are trapped in ice crystals as methyl clathrates. When the temperature increases, these crystals release methyl clathrates which become methane when in contact with the atmosphere.
The cause of the increasing atmospheric 
is due to the the thawing of dead organisms present in the permafrost. As the permafrost melts, these organisms decay and release into the atmosphere.
ANSWER: Constructive interference
Explanation: The amplitudes of in phase points on overlapping waves add up to make a result of a larger amplitude.
ANSWER 2: Destructive interference
Explanation: The amplitudes of out of phase points on overlapping waves subtract to make a resultant with a smaller amplitude
ANSWER 3: Wave interference
Explanation: Two waves overlap.
Answer:
C. When the oceanic lithosphere, which is more dense, sinks and pulls the plate with it
Explanation:
Slab pull and other mechanisms are responsible for the motion of plates. Every tectonic plate is driven by mantle convection.
- Convection is a form of heat transfer in fluids.
- It is as a result of differences in density and temperature values.
- The oceanic crust is denser and colder.
- As hot magma from deep within the subsurface rises and move through cracks, the oceanic lithosphere is drawn down and deeper.
- This cycling between the cold lithosphere and hot rising plumes provides the mechanism that drives plate motion.
Here are some sources of ocean pollution:
<span>Oil. Petroleum products used for fuel are mined from the earth deep below the ocean surfaces.
Dumping.
Sewage.
Air Pollution.
<span>Agricultural Runoff</span></span>
Answer:
I'll assume you have to match the name with their definitions.
1. aquifers
underground water sources
That's because of the presence of porous rocks that let water pass through them and reach an underground cavern that then acts as a tank.
2. delta
a broad, triangular-shaped land area at the mouth of a river
That's common especially in larger rivers that meet their destination point (usually the ocean).
3. oasis
a small fertile area in the desert, usually a place where water is close to the surface (plural - oases)
We all heard about oases in the desert, where human and animals alike gather to drink.
4. rain shadow
an area that receives less precipitation because of its location on the leeward side of a mountain
That's common in high mountains region where the mountains are so high they block the passage of clouds to the other side.
