XML : XML Errors with XML and XSD Schema

I am having trouble getting my files to validate.

Here are the errors that I am getting.

4: 14 cvc-complex-type.2.4.a: Invalid content was found starting with element 'AirportList'. One of '{"":Airport}' is expected.

47: 15 XML document structures must start and end within the same entity.

I will post both my xml document code and my xsd schema below. I'm new to this, so I'm not sure what I'm doing wrong. I have changed the formatting of my files around but I still get the same errors. Thank you.

  <?xml version="1.0"?>  <AirportList xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"      xsi:noNamespaceSchemaLocation="simple_apoole33.xsd">   <AirportList>      <Airport>          <name>Abbotsford International Airport</name>          <community>Abbotsford</community>          <province>British Columbia</province>          <passengers>15</passengers>      </Airport>      <Airport>          <name>Atlin Airport</name>          <community>Atlin</community>          <province>British Columbia</province>          <passengers>15</passengers>      </Airport>      <Airport>          <name>Atlin Water Aerodrome</name>          <community>Atlin</community>          <province>British Columbia</province>          <passengers>15</passengers>      </Airport>      <Airport>          <name>Baie-Comeau Water Aerodrome</name>          <community>Baie-Comeau</community>          <province>Quebec</province>          <passengers>15</passengers>      </Airport>      <Airport>          <name>Beaver Creek Airport</name>          <community>Beaver Creek</community>          <province>Yukon</province>          <passengers>15</passengers>      </Airport>      <Airport>          <name>Bedwell Harbour Water Aerodrome</name>          <community>Bedwell Harbour</community>          <province>British Columbia</province>          <passengers>15</passengers>      </Airport>      <Airport>          <name>Billy Bishop Toronto City Airport</name>          <community>Toronto</community>          <province>Ontario</province>          <passengers>15</passengers>      </Airport>  </AirportList>      <?xml version="1.0"?>  <!-- XSD Schema for simple_apoole33_IT_MUST_VALIDATE.xml -->    <xsd:schema xmlns:xsd=      "http://www.w3.org/2001/XMLSchema">        <xsd:element name="AirportList">          <xsd:complexType>          <xsd:sequence>                <xsd:element name="Airport"                   maxOccurs="unbounded">                  <xsd:complexType>                  <xsd:sequence>                        <xsd:element name="name"type="xsd:string"/>                        <xsd:element name="community"type="xsd:string"/>                        <xsd:element name="province"type="xsd:string"/>                        <xsd:element name="passengers"type="xsd:integer" minOccurs = "0"/>                    </xsd:sequence>                  </xsd:complexType>              </xsd:element>            </xsd:sequence>          </xsd:complexType>      </xsd:element>  </xsd:schema>