Question

need major help

Answer 1

1: the 1930s dust bowl in the freat plains was caused by
deforestation
contour plowing
using renewable resources
poor farming practices


2:when farming overgazing climate change and/or seasonal drought change farmland into land the can not support plant life it is called
depletion
desertification
monoculture


3:which satement below is NOT true
deforestaion makes soil vulnerable to drying out
deforestaion results in losss of roots that stablize soil
deforestaion prevents desertification
deforestaion decreases biodiversity

4: of the following which is the most likely consequence of a manufacturing plant dumping its chemical waste into a nearby stream
incresed oxygen levels in the water
decreased flow rate of the stream
loss of a keystone species
an algal bloom

5:of the following which is the most likely to result after a farmer sprays his crops with pesticide
the crops die
the incest population increases
the soil dries up and blows away
a neghbors well test positive for pesticdes

6: the sulfr and nitrogen compounds in smog combine with water to form
ozone
ammonia
acid rrain
chloroflurocarbons

7:carbon dioxide is a colorless odorless gas why is it considered a pollutant
it get into natural waters and kills fish
it promotes algal growth in natural waters
it causes respiratory illness in humans
it increases the warming of the atmospher

8:how are species diversty and genetic divertiy different
species diverstiy is evaluated only in ecosystems while geetic diversity is evaluated in the entir atmosphere
species diversity measures the number of species in the biosphere while genetic diversity meaasures the variety of genes in the biosphere including variation species
species diversity measures the number of individuals of a species while genetic diversity measures total varity of species
conservation biology is concerned with species diversty but not with gentic diversty

9: biodiversity is valuable partly bbecause is
gives us intersting things to look at
tells us about many other species
contributes to medicine and agriculture
provides human with resistance to disease

10:which of the following is NOT a threat to biodiversity
pollution
deforestation
crop rotation
climate change

Answer 2

@amistre64 can you plz help meeeeee

Answer 3

ill give a medal

Answer 4

@just_one_last_goodbye @jordanstclair @jigglypuff314 @221emily

Answer 5

are you posting a test? OS rules are to post one question at a time so that it can be discussed and something learned from it.

Answer 6

i wouldnt know much of any of these, they dont seem to be very biology based.

Answer 7

i know but there in my biology and these are my homework questions