Which of the following is ephemeral weed?

What is the minimum required temperature (in °C) for wheat seed germination to begin, allowing radicle emergence under optimal conditions?

Which of the following statement is correct regarding Gymnosperms? 

The scientific name of Banana is _____

Aquacaps are used for

Which soils favour maximum ammonia volatilization losses of fertilizer - N?

Which soil texture class has the highest water-holding capacity?

Which among the following is considered a primary pollutant directly emitted into the atmosphere?

Which of the following is used as rootstock for sapota?

What are the factors of production?