Answer:
The correct answer is <em>c. animal wastes and fertilizers. </em>
Explanation:
Two major sources of nitrate pollution are farming and breeding activities. There are also certain industrial activities involved in nitrate pollution, but in general, these industries are related to agriculture.
The indiscriminate use of fertilizers for several years in intensive productions produce high nitrate concentration in soil and consequently elevate the risk of nitrate lixiviation.
Breeding animals produce nitrate pollution by their wastes, which accumulate and are not treated. These wastes include flesh, hair, feathers, skin, fat, liquids, excrements, among others. These wastes are an important source of nitrate.
In many cases, animal wastes are used by farmers as organic matter to improve their production. But excessive and incorrect use of it might produce severe damage in water sources.
Answer:
60.48L
Explanation:
By definition, at STP (Standard Temperature and Pressure), any gas takes up a volume of 22.4L.
Consequently, because the ideal gas law (PV=nRT) states that the number of moles is directly proportional to the volume of the gas, 2.7M of N2 takes up a volume of:
2.7*22.4L
=60.48L
Answer:
O+ x AB- = -A(O)
Explanation: Remember that Rh- is recessive the father may have recessive RH-
Answer:
Transgenic animals require a host to grow but transgenic bacteria and plants do not require host.
Explanation:
Transgenic organisms are the organisms in which foreign genetic material are introduced so that the transgenic organism can get some particular traits and characteristic.
The process of producing transgenic animals is different from producing transgenic plant and transgenic animals because in transgenic animals DNA from a cell is transferred into an enucleated oocyte.
Then this oocyte is transferred to the oviduct of a surrogate mother to raise the genetically modifies embryo but in plant and microbe, no host is required.
Answer:
Seismic waves are the wave form of energy that travels through the earth’s layer and they are produced as a result of earthquake, magma movement, volcanic eruptions, land slides and large man- made explosions.
There are two types of seismic waves: body waves and surface waves. Body waves travel through the interiors of the earth. Surface waves travels only through the interface between earth and the atmosphere.
Explanation: please look at comments for a explanation. It’s not letting me explain here.
