Weather vs Climate

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What is the term used to describe clouds with a positive temperature?

Frozen clouds

Ice clouds

Warm clouds (correct)

Cold clouds

What is the purpose of cloud seeding?

To reduce cloud precipitation

To mitigate the effects of drought (correct)

To induce drought

To increase cloud temperature

What is the characteristic of dry ice that makes it useful for cloud seeding?

It remains unchanged at –80°C (correct)

It melts at –80°C

It evaporates at –80°C

It dissolves in water

How is dry ice typically released into clouds during seeding?

Through aircraft releasing pellets (D) Signup and view all the answers

What is the result of dry ice seeding in clouds?

Formation of ice crystals (A) Signup and view all the answers

What is the typical period of time used to calculate climatic normals?

30 years (C) Signup and view all the answers

What is the drawback of using dry ice for cloud seeding?

All of the above (D) Signup and view all the answers

What is the primary factor that affects the climate of a region based on its latitude?

Distance from the equator (D) Signup and view all the answers

What is the most common base temperature used for different crops?

6.0 ºC (D) Signup and view all the answers

How does the temperature change with an increase in altitude?

It decreases by 6.5 ºC/Km (A) Signup and view all the answers

What is the formula to calculate the Growing Degree Days (GDD)?

GDD = (Tmax + Tmin) / 2 - Tb (D) Signup and view all the answers

What is the purpose of calculating the Growing Degree Days?

To forecast crop harvest dates, yield, and quality (C) Signup and view all the answers

What is the primary purpose of climate information in agriculture?

To select crops suitable for a region (B) Signup and view all the answers

What is the temperature range at which the plant cell gets killed?

50-60°C (A) Signup and view all the answers

What is the main difference between weather and climate?

Weather is short-term, while climate is long-term (B) Signup and view all the answers

What is the classification of climate based on latitude?

Tropical, Sub-tropical, Temperate, and Polar (C) Signup and view all the answers

What is the result of high temperature on plants?

It results in desiccation of plants (B) Signup and view all the answers

What type of plants are killed at a comparatively lower temperature of 40°C?

Aquatic plants (B) Signup and view all the answers

What is the form of salt used in cloud seeding?

10 per cent solution (B) Signup and view all the answers

What is the purpose of mixing salt with soap?

To avoid practical problems (A) Signup and view all the answers

What is used to disperse salt particles in the balloon burst technique?

Gun powder and sodium chloride (B) Signup and view all the answers

What is the conversion process of liquid water into vapour?

Evaporation (B) Signup and view all the answers

What is the most important water loss term in the water balance equation?

Evaporation (B) Signup and view all the answers

What is the link between water budget and heat budget?

Evaporation (A) Signup and view all the answers

What is the primary function of guard cells of stomata, cuticle, and lenticules?

To regulate water loss through transpiration (B) Signup and view all the answers

What happens when the rate of root water uptake falls below the transpiration demand?

Actual transpiration begins to fall below the potential rate (A) Signup and view all the answers

What is the reference evapotranspiration (ET0) based on?

An extended surface of 8 to 10 centimeters tall green grass cover (B) Signup and view all the answers

What is the purpose of estimating potential evapotranspiration (PET) for a crop?

To plan irrigation schedules (D) Signup and view all the answers

What is the relationship between evapotranspiration and crop yield?

There is an optimal evapotranspiration rate for maximum yield (A) Signup and view all the answers

What is the purpose of understanding the relationship between evapotranspiration and crop yield?

To optimize irrigation schedules and improve crop yields (D) Signup and view all the answers