Simple as can be. As this post is written (August 2014) there is no GMO popcorn on store shelves nor is there any available for farmers to grow. I raise popcorn for Weaver Popcorn, and they currently have no plans to explore any biotech traits.
Cold-Weather Concreting. Concrete can be placed safely without damage from. freezing throughout the winter months in cold climates if. certain precautions are taken. Cold weather is defined by. ACI Committee 306 as a period when for mor e than 3 suc-. cessive days the average daily air temperature drops. below 5Â°C (40Â°F) and stays below 10Â°C (50Â°F) for more.
December, January and February are the coldest months, with average temperatures around 14 Â°C (57 Â°F) during the day and 5 Â°C (41 Â°F) at night. Slight frost at night is more common on the hills around the city and in the outer metropolitan area (far from the sea).