Keyboard covers my textarea android

Question

I have a text area like this

When i try to write in the last section, at the bottom, the keyboard covers all of this.

EDIT: This is my layout. The problem is in the linearlayout with id: layout_notas

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/activity_crear_entrenamiento"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <include
        android:id="@+id/tool_bar"
        layout="@layout/toolbar"></include>

    <LinearLayout
        android:id="@+id/layout_ejercicios"
        android:layout_width="match_parent"
        android:layout_height="300dp"
        android:layout_below="@+id/layout_info"
        android:layout_alignParentStart="true">

    <TextView
        android:text="Ejercicios"
        android:textStyle="bold"
        android:textSize="30dp"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:id="@+id/ejercicios"
        android:background="@color/colorPrimary"
        android:layout_marginTop="0dp"
        android:layout_below="@+id/tool_bar"
        android:layout_alignParentStart="true" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/layout_notas"
        android:layout_below="@+id/layout_ejercicios"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentStart="true"
        android:orientation="vertical">

        <TextView
            android:text="Notas"
            android:textSize="30dp"
            android:textStyle="bold"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:id="@+id/notas"
            android:background="@color/colorPrimary"
            android:layout_marginTop="0dp"
            android:layout_below="@+id/tool_bar"
            android:layout_alignParentStart="true" />

        <EditText
            android:id="@+id/textArea_information"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@null"
            android:gravity="top|left"
            android:inputType="textMultiLine"
            android:overScrollMode="always"
            android:scrollbarStyle="insideInset"
            android:scrollbars="vertical"
            android:lines="6"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:scrollHorizontally="false" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/layout_info"
        android:layout_width="wrap_content"
        android:layout_height="65dp"
        android:orientation="horizontal"
        android:layout_below="@+id/tool_bar"
        android:layout_alignParentStart="true">

        <TableLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">


            <TableRow>

                <TextView
                    android:text="Hora inicio:"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:id="@+id/tvHoraInicio"
                    android:textSize="25dp"
                    android:layout_weight="1" />

                <EditText
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:inputType="time"
                    android:ems="3"
                    android:maxLength="5"
                    android:textSize="25dp"
                    android:id="@+id/etHoraInicio"
                    android:layout_weight="1"
                    android:layout_toRightOf="@+id/tvHoraInicio"/>

                <TextView
                    android:text="Ubicacion:"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:id="@+id/tvUbicacion"
                    android:textSize="25dp"
                    android:paddingLeft="50dp"
                    android:layout_weight="1" />

                <EditText
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:inputType="text"
                    android:ems="7"
                    android:textSize="25dp"
                    android:maxLength="20"
                    android:id="@+id/etUbicacion"
                    android:layout_weight="1"
                    android:layout_toRightOf="@+id/tvUbicacion"/>

            </TableRow>

        </TableLayout>


    </LinearLayout>

</RelativeLayout>

How can i solve it?