Question

please solve these.

1. Effect of temperature on density is negligible for: [1] *

•Liquid

•Solid

•Gas

2. 1. Cooking is difficult at high altitude because of : [1] *

Low temperature

Low atmospheric pressure

High atmospheric pressure




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Answer 1

Answer:

PLEASE MAKE MY ANSWER AS BRAINLIEST ANSWER

1. The warmer the water, the more space it takes up, and the lower its density. When comparing two samples of water with the same salinity, or mass, the water sample with the higher temperature will have a greater volume, and it will therefore be less dense.

2.Correct option is due to decrease in atmospheric pressure, the boiling point of water decreases

Boiling point of a liquid increases with increase in external pressure and decrease at lower external pressure.

At high altitudes, atmospheric pressure is low, thus boiling point of water decreases.

So food cooks slowly, as water used for cooking do not attain higher temperature.