Choose which features can be found on mars landscapeplains  blankdust storms  blankvalleys  blankforest  blank     √           Χ

To address the question regarding the features that can be found on Mars, we can analyze each option:

1. Plains: Yes, Mars has large plains, such as the smooth plains called "vastitas" and the northern plains, which cover a significant portion of the planet's surface.

2. Dust Storms: Yes, Mars is known for its planet-wide dust storms that can last for weeks or even months, significantly affecting the Martian atmosphere.

3. Valleys: Yes, Mars has numerous valleys, including Valles Marineris, which is one of the largest canyon systems in the solar system.

4. Forest: No, Mars does not have forests. The planet's surface is mostly barren and dry, lacking the necessary conditions to support tree growth.

Conclusion

The correct features that can be found on the Martian landscape are:

• Plains: √
• Dust Storms: √
• Valleys: √
• Forest: Χ

Thus, the valid features on Mars's landscape include plains, dust storms, and valleys, while forests are not present.