subject
Chemistry, 17.09.2019 18:30 HTKPenguin

Question 1
what does the background extinction rate tell us?
a) how many organisms would go extinct if humans were not here
b) how many organisms that are "in the background" (as in, not charismatic megafauna) go extinct each year
c) how many organisms go extinct including due to human activity.
d) none of the above are true
question 2
what types of organisms are endangered?
a) all types except bacteria
b) just plants and animals
c) every type can become endangered.
d) charismatic megafauna
question 3
which of the following are the most endangered habitats?
a) tropical rainforests
b) temperate deciduous forests
c) coral reefs
d) a & c are both highly endangered.
question 4
when you drive a car, you are contributing
a) light pollution.
b) air pollution.
c) water pollution.
d) land pollution
question 5
a sewage spill would be
a) land pollution.
b) air pollution.
c) noise pollution.
d) thermal pollution.
question 6
which of the following is not a reason that light pollution could be harmful?
a) disruption of sea turtle reproduction
b) confusion of photosynthetic organisms
c) disruption of bird songs
d) disruption to migrating birds

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 03:10
Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?
Answers: 3
question
Chemistry, 22.06.2019 17:00
Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease
Answers: 1
question
Chemistry, 22.06.2019 18:00
What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j
Answers: 1
question
Chemistry, 23.06.2019 02:00
Which of the following substances is the most soluble in water? a. sodium chloride b. methane c. bromine d. carbon
Answers: 1
You know the right answer?
Question 1
what does the background extinction rate tell us?
a) how many organisms woul...
Questions
question
Mathematics, 05.10.2019 18:00
question
Chemistry, 05.10.2019 18:00
question
Social Studies, 05.10.2019 18:00
question
Arts, 05.10.2019 18:00