5 to 6 months. Practices intonation by making her voice rise and fall, often in response to baby talk and your facial expressions. Red flag: If your child isn't making vocal sounds by the time she's 6 months old, talk with her doctor. 7 to 12 months. Babbles with greater diversity, making new sound combinations and intonations. Red flag: If your child isn't making vocal sounds by age 7 months, talk with his doctor.
Best Answer: With all other things remaining the same, relative humidity will increase as temperatures decrease. Since relative humidity is a ratio (in percent) of the actual amount of water vapor in the atmosphere compared to the saturation amount, if the saturation amount decreases, the ratio must increase. Source(s): an old forecaster
Temperature and Humidity. Besides light, there are additional environmental concerns, such as temperature and humidity, that can adversely affect a collection. For every 18 degree F (10 C) increase in temperature, it is estimated that chemical reactions in paper double.Relative humidity is a measure of the capacity of air to hold water.This amount varies as temperatures increase or decrease.or every 18 degree F (10 C) increase in temperature, it is estimated that chemical reactions in paper double. Relative humidity is a measure of the capacity of air to hold water. This amount varies as temperatures increase or decrease.