Answer:
B) Parabola
Explanation: The function sunrise can be seen as the function
F( t = day of the year ) = hour of the day when the sun appears.
There are two important days in a year: - 21 of July, the summer solstice, and, -21 of December, the winter solstice.
The 21 of July is the day of the year when the sun appears the earliest, and, the 21 of December is the day of the year when the sun appears the latest.
We measure the sunrise in on year, i.e, 366 days, we begin to measure the 21 of December and end our measurements the 21 of December of the next year. Hence, t=0 corresponds to the 21 of December, t=366 corresponds to the 21 of December of the next year and t_mid=366/2 corresponds to the 21 of July.
It holds that F(0)=F(366) is the minimum of the function and F(t_mid) is the maximum of the function. Between t=0 and t_mid F(t) is decreasing, also between t_mid and t=366 F(t) is increasing. Moreover, by the way that the earth travels around the sun, we can assume that F(t) is symmetric with respect to t_mid. Finally, by plotting or drawing F(t), for t between 0 and 366, looks like a parabola facing downwards.
<span><span>The Carbon Cycle</span><span><span>The Carbon Cycle All living things are made of carbon. Carbon is also a part of the ocean, air, and even rocks. Because the Earth is a dynamic place, carbon does not stay still. It is on the move! In the atmosphere, carbon is attached to some oxygen in a gas called carbon dioxide. Plants use carbon dioxide and sunlight to make their own food and grow. The carbon becomes part of the plant. Plants that die and are buried may turn into fossil fuels made of carbon like coal and oil over millions of years. When humans burn fossil fuels, most of the carbon quickly enters the atmosphere as carbon dioxide. Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world. But humans have burned so much fuel that there is about 30% more carbon dioxide in the air today than there was about 150 years ago, and Earth is becoming a warmer place. In fact, ice cores show us that there is now more carbon dioxide in the atmosphere than there has been in the last 420,000 years.</span></span></span>
cumulus: fluffy cotton balls
stratus: overcast days, rainfall
cirrus: fair weather
fog: warm air over cold ground
just passed this quiz
Answer:
years and years
Explanation:
it doesn't happen overnight
