What pulls the rocks together to make a planet?
What were the conditions of our Earth 4.54 billion (4540 million) years ago? (Temperature? what gases are available? Solid surfaces?)
What happens when the planet crashes into Earth?
How long does a day last when Earth is first formed? Why?
What is inside the meteors that were striking Earth 3.9 billion (3900 million) years ago?
Why are the ocean’ tides so high and strong 3.9 bya (billion years ago)?
Where do the small islands come from 3.8 bya?
What are the “chemical soup” chemicals responsible for?
What is are the underwater bacterial colonies called?
What organisms are the first to photosynthesize?
What is the single most important element on Earth for life?
What was the name of the supercontinent 1.5 billion years ago?
Answers: 3
Biology, 21.06.2019 23:00
Some technological solutions to problems like global warming meet the specific needs and situations of local communities. an example from india involves converting the solid waste from cattle into clean-burning fuel for cooking. this reduces the amount of greenhouse gases, specifically methane and carbon dioxide, released into the environment from wood fires. when evaluating the feasibility of implementing this solution, computer models are used to weigh costs against benefits. what factor is least likely to impact the decision on adopting this technology?
Answers: 1
Biology, 22.06.2019 02:40
What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.
Answers: 1
Biology, 22.06.2019 08:00
This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.
Answers: 2
Biology, 22.06.2019 12:30
Based on her survey, which advertising mediums will work best to publicize leslie's in-store specials?
Answers: 1
What pulls the rocks together to make a planet?
What were the conditions of our Earth 4....
What were the conditions of our Earth 4....
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