Biology, 03.05.2021 20:20 ericlawton
Which of the following is a negative effect of using fertilizers in agriculture?
1. run-off of excess fertilizers into rivers
2. higher crop yields
3. lower crop yield
4. faster growth period for crops
Answers: 3
Biology, 21.06.2019 20:10
Chalk is an ionic compound. which is a property of all ionic compounds that makes chalkboard? particularly useful for writing on a a high melting point hardness and brittleness inability to dissolve in water a multicolored appearance
Answers: 1
Biology, 22.06.2019 04:30
African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.
Answers: 2
Biology, 22.06.2019 21:30
The picture below shows two galaxies. spiral galaxy and elliptical galaxy which of these statements best describes a similarity between the two galaxies? (2 points) both have elongated centers. both have centers shaped like bars. both change their shape from time to time. both are held together by gravitational forces.
Answers: 2
Biology, 22.06.2019 23:30
Mendel made crosses between pure-breeding y’all pea plants with purple flowers and pure-breeding short pea plants with white flowers. the alleles for a y’all height and purple flowers were dominant. this cross is written a. ttpp x ttpp b. ttpp x ttpp c. ttpp x ttpp d. ttpp x ttpp
Answers: 2
Which of the following is a negative effect of using fertilizers in agriculture?
1. run-off of exc...
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