Answers: 1
Biology, 21.06.2019 15:00
Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)
Answers: 1
Biology, 22.06.2019 02:00
1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area
Answers: 2
Biology, 22.06.2019 02:30
Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels
Answers: 1
Biology, 22.06.2019 02:40
Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. which punnett square represents the correct way to set up the cross rryy ´ rryy? 
Answers: 1
Blood cells are produced in which system?...
Chemistry, 24.04.2021 21:40
Mathematics, 24.04.2021 21:40
Law, 24.04.2021 21:40
Mathematics, 24.04.2021 21:40
Mathematics, 24.04.2021 21:40
Mathematics, 24.04.2021 21:50
Mathematics, 24.04.2021 21:50
History, 24.04.2021 21:50
History, 24.04.2021 21:50
English, 24.04.2021 21:50