Answer:
If the duration of life on Earth was on a scale of 20,000 days, the human species would be present in the Earth for approximately 9 days.
Explanation:
We can't be sure about the exactly age of the Earth, but we can base our calculus in a number between 4400 and 4600 million years, because the most accepted researches shows numbers in this span of time. We can take the average of those limits: 4500 million years.
On another hand the presence in the Earth of human species has not a precise date because of the it does not have a precise date for two main reasons, the scientific evidence does not include all the human species that existed on Earth but it is a very incomplete evidence and besides being an evolutionary phenomenon it is not easy to determine from what moment We can consider that a species belongs to the human race or not. In any case, we take the approximate date of the scientific evidence of the existence of human species in an age of 2 million years.
With both numbers we can calculate the proportion in the scale of 20 thousand years throw the following formula:
PHS = 20000 years . 2 million years / 4500 million years = 8.9 years
PHS: Presence of Human Species
Hydrosphere and atmosphere. those are the only 2 spheres that interact with each other in the air.
Biosphere reprezents all the living forms
geosphere includes bisphere, hidrosphere and atmosphere
hydrosphere represents the the water on Earth
atmosphere is the gas on Earth, so the correct answer is D - ATMOSPHERE
Grains, pulses and root crops, i.e. the food crops, include rice, maize, groundnut, soybean, cassava and sweet potato and a number of other crops. The main staple food crop in Indonesia is rice, which is produced mainly in irrigated or lowland systems. Whilst in Texas Planting & Harvesting. ... While the primary crops of Texas are cotton, corn, feed grains (sorghum, milo, etc.), rice and wheat, there is an abundance of other crops, too. From peanuts, to sunflowers to sugarcane and more.
Answer:
I think a..
Explanation:
cause Kelvin scale starts with 373k
