Which is a sign of a chemical change? question 3 options: vinegar is mixed with baking soda resulting in carbon dioxide bubbles. paint on a freshly painted wall dries and is no longer sticky. ice cream melts when left at room temperature. calcium chloride is dissolved in h2o and disappears.

Ice Cream Melts when Left at room temperature

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.