Atmosphere, Climate & Weather

Time between two observe passages of a star over the same meridian of longitude is called Sidereal day.
Sidereal day = 23 hours 56 min. 4.09 sec.

The Taiga (boreal forest) biome is located between the temperate grasslands to the south and the tundra to the north. This forms a natural latitudinal progression from warmer grasslands through coniferous forests to Arctic tundra. The other options pair tundra with climates not adjacent to taiga belts.

Option 3 and 4 is correct because equatorial climates are characterized by consistent high temperatures (no cold winters or hot summers) and afternoon convectional showers. They have very small diurnal (daily) temperature ranges due to high cloud cover and humidity. Statements 1 and 2 are incorrect - equatorial regions don't experience seasonal temperature extremes.

Isopleths are the lines that join places of equal value of a particular phenomenon or product in uniform.

Isohyets is the correct answer because they are lines on a map connecting points with equal rainfall. Isolines is the general term for any line connecting equal values, Isodrums is not a standard term, and Isotherms connect points of equal temperature - only Isohyets specifically refers to rainfall.

Correct answer is (1). 

Correct option is (3).

Statement 2 alone is correct. Statement 1 is incorrect because New Zealand's oceanic position gives it mild temperatures throughout the country, not just in the north. Statement 2 is correct because New Zealand's mountain ranges run northeast-southwest, creating sharp east-west precipitation contrasts (west is wet, east is dry) rather than north-south differences.

Correct Answer: Sirocco

Mediterranean regions have moderate, wet winters and warm, dry summers which is ideal for specialized agricultural practices like grape cultivation (viticulture), garden crops (horticulture), and silk production (sericulture). These climate conditions support high-value agricultural activities that require specific seasonal patterns. The other regions listed (monsoon, tropical highlands, marine west coast) have different climate characteristics that are less suitable for these particular practices.

Pampas (South America), Veld (southern Africa), and Savanna (tropical regions) are all grassland ecosystems. The Rocky Mountains is a major mountain range in North America, not a grassland. Mountains have different vegetation, elevation zones, and ecological characteristics compared to flat or rolling grassland terrain.

Earth's seasons are caused by the 23.5-degree tilt of Earth's axis relative to its orbital plane. As Earth orbits the Sun, this fixed tilt means different parts of Earth receive varying amounts of direct sunlight throughout the year. When the Northern Hemisphere tilts toward the Sun, it's summer there; when it tilts away, it's winter. The elliptical orbit (option A) has minimal effect on seasons.

Temperate regions have coniferous forests with spruce trees adapted to cold winters. Hot deserts feature acacia trees that survive extreme drought and heat. Equatorial rainforests are dominated by broadleaf species like mahogany in constantly warm, wet conditions. Mediterranean regions have oak species adapted to summer drought. The correct matching pairs these climatic conditions with their representative tree species.

Sunspots are temporary dark areas on the Sun's photosphere (visible surface) that appear darker because they are cooler than surrounding areas. They are caused by concentrated magnetic field lines that inhibit convection, reducing surface temperature. They are not physical mountains or features on the Sun's surface, but rather magnetic phenomena in the Sun's atmosphere.

 The correct answer is option no.4.

 The state of inactivity adopted by desert animals during the hottest and driest season is known as aestivation .

Equatorial rainforests have incredible biodiversity and all three hardwood species - mahogany, rosewood, and ebony - are found in these tropical forests. These are valuable tropical hardwoods that thrive in the warm, constantly wet conditions near the equator. Each species has adapted to the competitive, layered canopy structure of rainforest ecosystems.

It is Willie Willies.