Which of these is a relic boundary? A) a desert that serves as a boundary between two countries B) a boundary that separates people of different ethnicities C) a boundary that was put into place by force but is still observed D) a wall that was built as a boundary but is no longer considered a boundary

Answer:

1.  Population change is modeled and explained in a model that shows natural growth or anexponential growth model. This comes along with the changes in population size and agedistribution within the population

2.  Governments may promote population change in many ways. One way is to limit the number of children citizens can have. An example of this was China’s One-Child Policy, a law where the Han Chinese (primarily living in urban areas) cannot have more than one child. This drastically affected China’s population as now there is a huge male and elderly population. Another way is to push for the usage of contraception. In Iran, contraceptives have been used more and have been endorsed by the government to limit an unbalanced population.

3. One environmental effect of human population growth is the problem of global warming. Some people are scared  that global warming will lead to rising sea levels and extreme weather conditions in the future. another is deforestation,  in order to support the growing population, forests are being destroyed at an alarming rate.

Answer: Option (1)

Explanation:

When an oceanic plate collides with a continental plate, the denser oceanic plate gets subducted beneath the less denser continental plate, and this down-going slab undergoes partial melting at greater depth known as the subduction zone, which forces the magma to rise up and form volcano on the over-riding plate.

These volcanoes are of three types, namely the composite, dome and shield volcano. For example, Mount Vesuvius and Mount Fuji.

Thus, the correct answer is option (1).

Answer: The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.

Explanation: The Amazon rainforest plays an important part in regulating the world's oxygen and carbon cycles. It produces roughly six percent of the world's oxygen and has long been thought to act as a carbon sink, meaning it readily absorbs large amounts of carbon dioxide from the atmosphere.

Hope this helps

Answer:

Rampant deforestation could cause many important rain forest habitats to disappear completely within the next hundred years. Throughout the Amazon, mining and logging operations clear cut to build roads and dig mines. ... More than 20% of the world's oxygen is produced in the rainforest

Answer:

1 A temperature inversion is a deviation from the normal decrease of atmospheric temperature with altitude in the lower portion ( troposphere) of a planetary atmosphere ( atmosphere, Structure). Temperature inversions inhibit vertical motion, because the warmer air is at a higher altitude and tends to remain there.

question 2

An inversion exists when temperature increases with altitude. The figure below shows the four layers: the Troposphere, the Stratosphere, the Mesosphere, and the Thermosphere. Between each layer exists a "pause" in which the temperature remains constant with height.

Answer:

50

Explanation:

50% of 100 is half, and half of 100 is 50.