How to set a class based on a login in angular.

Ineed a good science fair name i’m doing a homemade water filter and i have no idea what the title should be plz

You have written, as part of a school assignment, a research paper on the solar system. you want to share this paper on your school website. on which type of server will you upload it?

1. which of the following is not an example of an objective question? a. multiple choice. b. essay. c. true/false. d. matching 2. why is it important to recognize the key word in the essay question? a. it will provide the answer to the essay. b. it will show you a friend's answer. c. it will provide you time to look for the answer. d. it will guide you on which kind of answer is required.