What is the solid obtained at the neck of a funnel in sublimation?

Sublimation is conversion of solid of vapors on heating and vapors to solid on cooling. The solid which undergoes sublimation is called sublime, whereas the solid obtained by cooling vapors is called sublimate.

Human activities and water pollution.

Explanation:

The population of sea otter was 3000 in the past but by providing good environmental conditions, the population of sea otter increases up to 10000. There are some factors that contributed in the decrease in sea otter population in the past such as human interaction and pollution of water etc. Human activities and pollution also cause a bad affect on other organisms living in the marine ecosystem.