Answer:
Humans are increasingly influencing the climate and the earth's temperature by burning fossil fuels, cutting down rainforests and farming livestock. This adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming.
Answer: b. Clear-cutting
Explanation: Clear cutting is a cheap and effective way of harvesting trees or timbers, this methods helps the forest operators to get the best out of a forest at a very reduced cost.
Clear-cutting is bad because removing the whole tree from an area destroys outrightly the natural habitat of most widelife, and it will also lead to the destruction of the eco-system that relies on the forest.
The correct answer is - ozone.
The ozone is essentially three molecules of oxygen, or O³. This gas is crucial for the life on the Earth because it is the one that manages to filter out big portion of the UV radiation from the Sun which is extremely harmful if its too strong, as it will contribute to the dying out of pretty much every living organism.
While the ozone layer in the stratosphere is very useful, the ozone in the lower parts of the troposphere is actually considered as pollutant. The reason why it is considered as pollutant is because it is very harmful if inhaled, and it also heavily damages the plants.
It is a terrestrial planet.
It was formed from gas and dust.
It was formed in a debris disk from colliding planetesimals.
Explanation:
The earth is one of the four terrestrial planets that orbits the sun and forms a significant part of the solar system.
The solar system is made up of the planets moving round the sun which is the star. The satellites moves round the planets. Also, there are other interplanetary bodies that moves in the solar system.
- According to the solar nebular theory, the earth was formed from a gas of intersellar dust which was rotating.
- Intense pressure and temperature led to the collapse of the core under gravitational pull. The core formed the sun.
- The debris disk accreted to form several planetesimmals from which the earth was derived.
- Most of the solid and denser materials were pulled in closely to sun and they are rock balls called terrestrial planets.
- The outer parts are gas giants.
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Answer:
The sick and invalid members of society were cared for by the healthy citizens
Explanation:
From this passage, we get a simple very nice picture about the basics of how the Inca society worked. Everyone that was capable of working was working, and everyone was treated in the same manner, had the same rights, and the hierarchy was somewhat horizontal. The members of the society that had health problems or were disabled, thus were not able to work, were taken care by the other members of the society, and they were receiving the basic means for living for free from the storehouses.
