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
When Does Condensation Occur. Condenstation occurs when the the air cools, and the water vapor reaches its satuation level. (aka relative Humidity) Relative humidity is defined as the ratio of the partial pressure of water vapor in a parcel of air to the saturated vapor pressure of water vapor at a prescribed temperature.