Biology, 15.01.2021 01:20, Ashtree519
Which events contributed to life evolving on Earth? Check all that apply.
Organisms began to photosynthesize.
The surface cooled, and water condensed.
Volcanoes added carbon dioxide to the atmosphere.
Ozone formed and blocked ultraviolet rays from the Sun.
Comets crashed into Earth, releasing water.
Answers: 3
Biology, 22.06.2019 02:00, baidentheodore617
Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat
Answers: 2
Biology, 22.06.2019 06:50, wildfox479
What is the period of cell life when it is conducting
Answers: 2
Biology, 22.06.2019 11:30, annsmith66
Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?
Answers: 1
Biology, 22.06.2019 16:40, 1kafran1
Aremote community desperately needs more electrical energy. it is located in an area with the following characteristics: average wind speed of 15 – 20 km/hr some medium-sized rivers with slow-moving currents few coal deposits some oil exploration being conducted within 400 miles based on the above information, which energy source would be the most economical and safest for the community to pursue? a. fossil fuel b. hydroelectric c. nuclear d. wind
Answers: 2
Which events contributed to life evolving on Earth? Check all that apply.
Organisms began to photos...
English, 28.10.2020 19:00
English, 28.10.2020 19:00
Mathematics, 28.10.2020 19:00