Wind.
light from the they orbit makes it difficult to locate extrasolar planets with telescope
Software can complete difficult calculations where humans often makes mistakes.
Compared with other storms tornadoes are small and form quickly. This makes them difficult to track. Small factors that we can barely detect or can't detect can also affect a tornado. Furthermore tornadoes are not well understood by scientists and they are difficult to study. Their relatively small size and unpredictability makes it nearly impossible to take measurements from inside.
A constellation is a group of stars that form a recognizable pattern in the sky. These stars are typically named after mythological figures, animals, or objects. Constellations help stargazers navigate the night sky and tell stories about the cosmos.
Difficult terrain to build on. Heavy rains and flooding. Dense trees can make it difficult for humans to get around.
Snowshoes work by distributing your weight over a larger surface area, preventing you from sinking into the snow. This makes it easier to walk on top of the snow and navigate through snowy terrain without sinking or getting stuck.
The Andes is a harsh environment due to its high elevation, rugged terrain, severe weather conditions, and limited access to resources such as water and food. The altitude can cause altitude sickness, the terrain makes transportation difficult, and the weather can be extreme with cold temperatures and sudden weather changes.
A mountain range can make travel or transporting goods difficult due to the challenging terrain, narrow paths, and inclement weather conditions.
relatively flat, more elevated and slightly hilly terrain in the eastern side
Mars does not have a breathable atmosphere, which makes it difficult to work on the surface.
Mutilation Makes Identification Difficult was created in 1995.
The hardest key to play on the piano is challenging for musicians because it has more sharps or flats, making the fingerings and hand positions more complex and difficult to navigate.
Resistance in the circuit makes it difficult for current to pass through.
The intermountain region has limited water resources and challenging terrain, which makes it difficult for cities to thrive. Additionally, much of the region is dominated by national parks, forests, and protected lands, limiting urban development.
The rugged terrain caused by high elevation in the Tibetan Plateau and surrounding mountain ranges, such as the Himalayas, makes constructing transportation infrastructure like roads and railways challenging. This can hinder smooth entry and exit to China from the west to southwest due to limited access points and the need for significant engineering feats to navigate the steep gradients and harsh climate conditions.
A mouse makes it user friendly to navigate through an operating system.