Answer:
The sun, or abiotic factors
Explanation:
Primary producers are organisms that make their own food, such as plants. They do this through photosynthesis, which requires sunlight, water, and carbon dioxide.
Answer: 1- Option (D)
2- Option (A)
Explanation:
The green house gases plays a significant role in the earth's global temperature. In absence of green house gas, the earth would have been very much cold and life would would be difficult to exist. The average global temperature would have been about -15°C to 25°C. So the most favorable answer given here is that the<u> earth's temperature would have decrease by about 60°C</u>.
<u>Carbon dioxide (CO₂) is not the most abundant green house gas</u>. It is the second most abundant. The present composition of CO₂ in the atmosphere is about 0.04% by volume. A small increase in the CO₂ level, can lead to a global rise in the temperature. Hence, <u>the above statement is false.</u>
Answer:
Apennines Mountain Range
Explanation:
Italy's landscape is dominated by one physical feature in most of the country, and that is the Apennines Mountain Range. This mountain range runs through the central part of the country, being parallel with the stretching of the western and eastern coastlines. Because it is the most marking feature in the peninsula, the peninsula got its name after it. The Apennines are very long mountain range for European standards, stretching for 1,200 km, from the Ligurian Alps in the northwest, to Reggio di Calabria in the southeast. This mountain range is divided into three parts, northern, central, and southern. The highest point of these mountains is 2,912 meters.
The proximity of water was an advantage to Western Europe and its culture was able to flourish as a result. Trade and travel by sea were easier and safer in historical times.
Answer:
Removing American Indians will allow white settlers to become wealthier.
Explanation:
