How did climate play a role in human migrations between 70,000 and 50,000 years ago?"     Intervals of heavy rain prompted humans to settle in North Africa     Drying/drought in northeast Africa pushed humans to migrate into Eurasia     A highly variable climate lead to local extinctions of human populations     Humans did not undertake significant migrations out of Africa in this interval

Q: how does surrounding temperature and pressure effect specific heat of fossil fuel

A: Specific heat of fossil fuel simply refers to the amount of heat a fossil fuel releases when it burn...

Q: During secondary succession, which of the these best describes why decomposing pioneer plants give w...

A:  I think option d will be the correct answer.

Q: Which of the following is an argument for defining the start of the Anthropocene?     The Indu...

A: Anthropocene defines a geological time period that explains recent time in the earth previous histor...

Q: Which star is a yellow giant star that is brighter, but cooler than the Sun?

A: Stars are one of the important components of the galaxies. They are large astronomical bodies that a...

Q: If you were to choose between saving the giant panda from extinction and saving shark species which ...

A: The ecosystem is the geographical area where the living organisms live and interact with each other ...

Q: Which of the following is true about the land sink of carbon?     The land is not a significant ...

A: The earth's system is sub-divided into 4 other systems, namely the atmosphere, biosphere, lithospher...

Q: Calculate the azimuth of the Sun at rising on midsummer’s day at Stonehenge (latitude 51 ◦ 10 ' N) ...

A: Azimuth angle is measure of the angle from north position. This calculations are able to determine t...

Q: What are some ways in which salt loading can be reduced? What is NUTRIENT LOADING and EUTROPHICATION...

A: Salts are halides i.e., components made up of the seventh group elements. Salts are ionic compounds ...

Q: What contaminations are outside the safe range for the subsurface city site?

A: Contaminations are the accumulation of the sediments seen in a region. Basically surface mountain st...

Q: The book of Hebrews contains 5 warnings. One of these warnings is O Don't repay evil with good. O Do...

A: The option b will be the correct answer.

Q: Q. What reducing agents should be used to obtąin the desired target molecules? H3C H, OH OH H2 CH2 C...

A: The answer to the following question is-

Q: Political boundaries do not always match environmental boundaries. What determines where water flows...

A: Earth is a terrestrial planet. This means it has a rocky surface primarily made up of silicate rocks...

Q: Part A A CD test is performed on a sample of clean sand. The confining pressure is held constant thr...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: I. Multiple Choice Directions: Write the letter of the correct answer on the space provided before e...

A: Note- Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question...

Q: What was the average concentration of CO2 in the Earth's atmosphere for ~ 880,000 years, prior to 17...

A: The mean level of atmospheric carbon dioxide in the period the 1750s are about 280 ppm. Follow that ...

Q: how would an increase in the availability of a resource that was limiting the herbivore population s...

A: The ecosystem is the geographical area where the living organisms live and interact with each other ...

Q: What type of star is very small and dense and was created after a supernova of a massive, huge star?...

A: Neutron stars are well known for their high density. They have also a small size and possess greater...

Q: Suppose that the world is comprised of two countries, A and B, that jointly exploit a common pool of...

A: Suppose the world is comprised of only two countries, A & B, that can jointly exploit a common p...

Q: 3. Correlate the three sections below. (Note that the limestone unit is present only in sections A a...

A: A landward shift of the coastline is indicated to as a transgression, whereas a seaward move is indi...